UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 14A INFORMATION

PROXY STATEMENT PURSUANT TO SECTION
Proxy Statement Pursuant to Section 14(a) OF THE SECURITIES EXCHANGE ACT OFof the
Securities Exchange Act of 1934
(AMENDMENT NO.
(Amendment No.)
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[X] Definitive Proxy Statement
[ ] Definitive Additional Materials
[ ] Soliciting Material Pursuant to Section 240.14a-11(c)
or Section 240.14a-12

¨ Preliminary Proxy Statement
¨ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))
x Definitive Proxy Statement
¨ Definitive Additional Materials
¨ Soliciting Material Pursuant to Section 240.14a-11c
or Section 240.14a-12
A. O. Smith Corporation
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(Name
(Name of Registrant as Specified inIn Its Charter)

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(Name
(Name of Person(s) Filing Proxy Statement, if other than the Registrant)
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[X] No fee required
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pursuant to Exchange Act Rule 0-11 (set forth the amount on which
the filing fee is calculated and state how it was determined):
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[ ] Fee paid previously with preliminary materials
[ ] Check box if any part of the fee is offset as provided by Exchange
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statement number, or the Form or Schedule and the date of its filing.

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[AO SMITH CORPORATION LOGO]

x No fee required.
¨ Fee computed on table below per Exchange Act Rules 14a-6(i)(1) and 0-11.
(1) Title of each class of securities to which transaction applies:
(2) Aggregate number of securities to which transaction applies:
(3) Per unit price or other underlying value of transaction computed pursuant to Exchange Act Rule 0-11 (set forth the amount on which the filing fee is calculated and state how it was determined):
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(2) Form, Schedule or Registration Statement No.:
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(4) Date Filed:
P.O. BOX 245009
MILWAUKEE, WI 53224-9509
NOTICE AND PROXY STATEMENT
NOTICE OF 20032004 ANNUAL MEETING OF STOCKHOLDERS
PLEASE TAKE NOTICE that the annual meeting of the stockholders of A. O. SMITH CORPORATION ("Company"(“Company”) will be held on Monday, April 7, 2003,5, 2004, at 10:30 A.M., Eastern Time, at the Hotel du Pont, 11th and Market Streets, Wilmington, Delaware, for the following purposes:

(1) To elect four directors chosen by the holders of Class A Common Stock.

(2) To elect two directors chosen by the holders of Common Stock.

(3) To ratify the appointment of Ernst & Young LLP as the Company's
independent auditors for 2003.

(4) To transact such other business and act upon such other matters which
may properly come before the meeting or any adjournments thereof.

(1) To elect six directors chosen by the holders of Class A Common Stock.
(2) To elect two directors chosen by the holders of Common Stock.
(3) To ratify the appointment of Ernst & Young LLP as the Company’s independent auditors for 2004.
(4) To transact such other business and act upon such other matters which may properly come before the meeting or any adjournments thereof.
Only holders of record of the Class A Common Stock and the Common Stock of the Company at the close of business on February 26, 2003,25, 2004, will be entitled to notice of and to vote at the meeting. The list of stockholders entitled to vote at the meeting will be available at our offices at 11270 West Park Place, Milwaukee, Wisconsin, as of March 24, 2003,22, 2004, for examination by stockholders for purposes related to the meeting.
YOU ARE INVITED TO ATTEND THE MEETING IN PERSON; HOWEVER, EVEN IF YOU PLAN TO ATTEND THE MEETING IN PERSON, PLEASE TAKE A FEW MINUTES TO COMPLETE, DATE AND SIGN THE ENCLOSED PROXY AND MAIL IT PROMPTLY IN THE ENCLOSED ENVELOPE. IF YOU ARE A SHAREHOLDER OF RECORD (YOUR SHARES ARE IN YOUR NAME), THEN YOU ALSO MAY VOTE YOUR SHARES VIA THE TELEPHONE BY ACCESSING THE TOLL-FREE NUMBER INDICATED ON YOUR PROXY CARD OR VIA THE INTERNET BY ACCESSING THE WORLDWIDE WEBSITE INDICATED ON YOUR PROXY CARD. IF YOU ATTEND THE MEETING, THEN YOU MAY REVOKE YOUR PROXY AND VOTE YOUR SHARES IN PERSON. YOUR ATTENTION IS DIRECTED TO THE PROXY STATEMENT ENCLOSED WITHIN.
W. David Romoser
Secretary
March 5, 2003

[AO SMITH CORPORATION LOGO]
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3, 2004
P.O. BOX 245009
MILWAUKEE, WI 53224-9509
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PROXY STATEMENT
GENERAL INFORMATION
This proxy statement is furnished to stockholders of A. O. Smith Corporation ("Company"(“Company”) in connection with the solicitation by its Board of Directors of proxies for use at the annual meeting of stockholders of the Company to be held on April 7, 2003,5, 2004, at 10:30 A.M., Eastern Time, at the Hotel du Pont, 11th and Market Streets, Wilmington, Delaware.
The record date for stockholders entitled to notice of and to vote at the meeting is the close of business on February 26, 200325, 2004 (the "Record Date"“Record Date”). As of the Record Date, the Company had issued 8,586,7928,530,383 shares of Class A Common Stock, par value $5 per share, 8,554,1978,497,788 shares of which were outstanding and entitled to one vote each for Class A Common Stock directors and other matters. As of the Record Date, the Company had issued 23,962,57024,018,979 shares of Common Stock, par value $1 per share, 20,485,72620,881,100 shares of which were outstanding and entitled to one vote each for Common Stock directors and one-tenth (1/10th) vote each for other matters.
The Notice of 20032004 Annual Meeting of Stockholders, this proxy statement, form of proxy card and the Company's 2002Company’s 2003 Annual Report are being mailed on or about March 5, 2003,3, 2004, to each stockholder of the Company at the holder'sholder’s address of record.
Under the Company'sCompany’s Restated Certificate of Incorporation, as long as the number of outstanding shares of Common Stock is at least 10% of the aggregate number of outstanding shares of Class A Common Stock, the holders of the Class A Common Stock and holders of the Common Stock vote as separate classes in the election of directors. The holders of the Common Stock are entitled to elect, as a class, 25% of the entire Board of Directors of the Company, and the holders of Class A Common Stock are entitled to elect the remainder of the Board. Stockholders are entitled to one vote per share in the election of directors for their class of stock.
A majority of the outstanding shares entitled to vote must be represented in person or by proxy at the meeting in order to constitute a quorum for purposes of holding the annual meeting. The voting by stockholders at the meeting is conducted by the inspectors of election. Abstentions and broker nonvotes are counted as present in determining whether the quorum requirement is met.
Directors are elected by a plurality of the votes cast, by proxy or in person, with the holders voting as separate classes. A plurality of votes means that the nominees who receive the greatest number of votes cast are elected as directors. Consequently, any shares that are not voted, whether by abstention, broker nonvotes or otherwise, will have no effect on the election of directors.
For all other matters considered at the meeting, both classes of stock vote together as a single class, with the Class A Common Stock entitled to one vote per share and the Common Stock entitled to one-tenth (1/10th) vote per share. Each such other matter is approved if a majority of the votes present or represented at the meeting are cast in favor of the matter. On such other matters, an abstention will have the same effect as a "no"“no” vote but, because shares held by brokers will not be considered entitled to vote on matters as to which the brokers withhold authority, a broker nonvote will have no effect on the vote.
The enclosed proxy is solicited by and on behalf of the Board of Directors of the Company. A proxy may be revoked by the person giving it at any time before the exercise thereof by delivering written notice of revocation or a duly executed proxy bearing a later date to the Secretary of the Company or by attending the meeting and voting in person. All valid proxies not revoked will be voted unless marked to abstain. Where a choice is specified on a proxy, the shares represented by such proxy will be voted in accordance with the specification made. If no instruction is indicated, then the shares will be voted FOR proposals (1) through (3) set forth in the accompanying notice.
The cost of soliciting proxies, including preparing, assembling and mailing the notice of meeting, proxy statement, form of proxy and other soliciting materials, as well as the cost of forwarding such material to the beneficial owners of stock, will be paid by the Company. In addition to solicitation by mail, directors, officers, regular employees of the Company and others may also, but without compensation other than their regular compensation, solicit proxies personally or by telephone or other means of electronic communication. The Company may reimburse brokers and others holding stock in their names or in the names of nominees for their reasonable out-of-pocket expenses in sending proxy material to principals and beneficial owners.
Pursuant to the rules of the Securities and Exchange Commission, services that deliver the Company'sCompany’s communications to stockholders that hold their stock through a bank, broker or other holder of record may deliver to multiple stockholders sharing the same address a single copy of the Company's 2002Company’s 2003 Annual Report and this proxy statement. Upon written or oral request, the Company will promptly deliver a separate copy of the Company's 2002Company’s 2003 Annual Report and/or this proxy statement to any stockholder at a shared address to which a single copy of each document was delivered. Stockholders may notify the Company of their requests by calling or writing Craig Watson, Director of Investor Relations, A. O. Smith Corporation, P.O. Box 245008, Milwaukee, Wisconsin 53224-9508; (414) 359-4009.

2
TABLE OF CONTENTS
PRINCIPAL STOCKHOLDERS...................................... STOCKHOLDERS 4
ELECTION OF DIRECTORS....................................... 5
BOARD COMMITTEES............................................ DIRECTORS 6
DIRECTOR COMPENSATION....................................... 7
SECURITY OWNERSHIP
GOVERNANCE OF DIRECTORS AND MANAGEMENT.............. THE COMPANY 7
The Board of Directors 7
Board Committees 8
Director Compensation 9
STOCK OWNERSHIP 10
Security Ownership of Directors and Management 10
Compliance with Section 16(a) of the Securities Exchange Act 11
EXECUTIVE COMPENSATION...................................... 8
COMPENSATION 12
COMPENSATION COMMITTEE INTERLOCKS AND INSIDER PARTICIPATION............................................. 11
BOARD PARTICIPATION 15
PERSONNEL AND COMPENSATION COMMITTEE REPORT ON
EXECUTIVE COMPENSATION.................................... 11
15
PERFORMANCE GRAPH........................................... 13
COMPLIANCE WITH SECTION 16(a) OF THE SECURITIES EXCHANGE
ACT....................................................... 14
GRAPH 17
REPORT OF THE AUDIT COMMITTEE............................... 14
COMMITTEE 18
APPOINTMENT OF INDEPENDENT AUDITORS......................... 15
AUDITORS 18
REPORT OF THE NOMINATING AND GOVERNANCE COMMITTEE 19
BOARD INFORMATION AND STOCKHOLDER COMMUNICATIONS 19
DATE FOR STOCKHOLDER PROPOSALS.............................. 15
PROPOSALS 20
EXHIBIT A — AUDIT COMMITTEE CHARTER A-1

3
PRINCIPAL STOCKHOLDERS
The following table shows persons who may be deemed to be beneficial owners (within the meaning of Rule 13d-3 under the Securities Exchange Act of 1934) of more than 5% of any class of the Company'sCompany’s stock. Unless otherwise noted, the table reflects beneficial ownership as of December 31, 2002.

2003.
Title of Class
Name and Address
of Beneficial Owner
Amount and Nature of
Beneficial Ownership
Percent
of Class
Class A
Common Stock Smith Investment Company*
P.O. Box 245011
Milwaukee, WI 53224-9511⁽¹⁾ 8,067,252 94.93 %
Common Stock Smith Investment Company
P.O. Box 245011
Milwaukee, WI 53224-9511⁽¹⁾ 1,559,076 ⁽²⁾ 7.51 %⁽²⁾
Common Stock Cramer Rosenthal McGlynn, LLC
520 Madison Avenue
New York, NY 10022 1,208,483 ⁽³⁾ 5.82 %
Common Stock FMR Corp.,
Edward C. Johnson 3d
and Abigail P. Johnson
82 Devonshire Street
Boston, MA 02109 1,492,090 ⁽⁴⁾ 7.19 %
Common Stock Mac-Per-Wolf Company
310 S. Michigan Ave., Suite 2600
Chicago, IL 60604 1,343,300 ⁽⁵⁾ 6.47 %
Common Stock T. Rowe Price Associates Inc.
100 East Pratt Street
Baltimore, MD 21202 2,474,250 ⁽⁶⁾ 11.93 %

NAME AND ADDRESS AMOUNT AND NATURE OF PERCENT
TITLE OF CLASS OF BENEFICIAL OWNER BENEFICIAL OWNERSHIP OF CLASS
- -------------- ------------------- -------------------- --------

Class A Smith Investment Company* 8,067,252 94.21%
Common Stock P.O. Box 245011
Milwaukee, WI 53224-9511(1)

Common Stock* Throughout the balance of the proxy statement, Smith Investment Company 1,559,076(2) 7.61%is referred to as “SICO”.
⁽¹⁾ Arthur O. Smith and Lloyd B. Smith are co-filers with SICO on the Schedule 13G that SICO has filed with the Securities and Exchange Commission.
^{(2)
P.O. Box 245011
Milwaukee, WI 53224-9511(1)} Pursuant to the Company’s Restated Certificate of Incorporation, Class A Common Stock Dimensional Fund Advisors Inc. 1,117,600(3) 5.46%
1299 Ocean Avenue, 11th Floor
Santa Monica, CA 90401is convertible at any time at the option of the holder into Common Stock on a share-for-share basis. For purposes of computing beneficial ownership of SICO’s Common Stock, assuming that all Class A Common Stock held by SICO was converted into Common Stock, SICO’s beneficial ownership of the Common Stock is 9,626,328 shares, which represents 33.4% of the class of Common Stock.
⁽³⁾ Cramer Rosenthal McGlynn, LLC has sole voting power with respect to 788,200 shares and sole dispositive power with respect to 802,400 shares and shared voting power and shared dispositive power with respect to 406,083 shares.
⁽⁴⁾ Fidelity is a wholly-owned subsidiary of FMR Corp. and an investment adviser registered under Section 203 of the Investment Advisers Act of 1940 and is a beneficial owner of 1,435,540 shares. Edward C. Johnson 3d, FMR Corp., through its control of Fidelity, and the funds each has sole power to dispose of the 1,435,540 shares owned by the Funds.
⁽⁵⁾ Perkins, Wolf, McDonnell &and Company, 2,293,650(4) 11.20%
310 S. Michigan Ave.LLC is a subsidiary of Mac-Per-Wolf Company, and is an investment adviser registered under Section 203 of the Investment Advisers Act of 1940. Perkins, Wolf, McDonnell and Company, LLC furnishes investment advice to various investment companies and to individuals and institutional clients, collectively referred to herein as “Managed Portfolios”. Janus Small Cap Value Fund is one of the Managed Portfolios to which Perkins, Wolf, McDonnell and Company, LLC provides investment advice. Janus Small Cap Value Fund has sole voting and dispositive power with respect to 1,285,000 shares.
⁽⁶⁾ These securities are owned by various individual and institutional investors, including T. Rowe Small-Cap Stock Fund, Inc. (which owns 1,670,700 shares, representing 8.0% of the shares outstanding), Suite 2600
Chicago, IL 60604

Common Stockwhich T. Rowe Price Associates, Inc. 2,290,600(5) 11.19%
100 East Pratt Street
Baltimore, MD 21202

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* Throughout the balance of the proxy statement, Smith Investment Company is
referred to as "SICO".

(1) Arthur O. Smith and Lloyd B. Smith are co-filers with SICO on the Schedule
13G that SICO has filed with the Securities and Exchange Commission.

(2) Pursuant to the Company's Restated Certificate of Incorporation, Class A
Common Stock is convertible at any time at the option of the holder into
Common Stock on a share-for-share basis. For purposes of computing
beneficial ownership of SICO's Common Stock, assuming that all Class A
Common Stock held by SICO was converted into Common Stock, SICO's beneficial
ownership of the Common Stock is 9,626,328 shares, which represents 33.7% of
the class of Common Stock.

(3) Dimensional Fund Advisors Inc. ("Dimensional"), an investment advisor
registered under Section 203 of the Investment Advisors Act of 1940,
furnishes investment advice to four investment companies registered under
the Investment Company Act of 1940, and serves as investment manager to
certain other commingled group trusts and separate accounts. These
investment companies, trusts and accounts are the "Funds". In its role as
investment advisor or manager, Dimensional possesses sole voting power and
sole dispositive power with respect to 1,117,600 shares. For purposes of the
reporting requirements of the Securities and Exchange Act of 1934,
Dimensional may be deemed to be the beneficial owner of the shares held by
the Funds. However, Dimensional disclaims beneficial ownership of such
securities.

(4) Perkins, Wolf, McDonnell & Company has sole voting power and sole
dispositive power with respect to 8,050 shares and shared voting power and
shared dispositive power with respect to 2,285,600 shares.

(5) These securities are owned by various individual and institutional
investors, including T. Rowe Small-Cap Stock Fund, Inc. (which owns
1,520,700 shares, representing 7.43% of the shares outstanding). T. Rowe
Price Associates, Inc. ("Price Associates"(“Price Associates”) serves as investment adviser with power to direct investments and/or sole power to vote the securities.
For purposes of the reporting requirements of the Securities Exchange Act of
1934, Price Associates is deemed to be a beneficial owner of such
securities; however, Price Associates expressly disclaims that it is, in
fact, the beneficial owner of such securities. For purposes of the reporting requirements of the Securities Exchange Act of 1934, Price Associates is deemed to be a beneficial owner of such securities; however, Price Associates expressly disclaims that it is, in fact, the beneficial owner of such securities.
Information on beneficial ownership is based upon Schedules 13D or 13G filed with the Securities and Exchange Commission and any additional information that any beneficial owners may have provided to the Company.

4
ELECTION OF DIRECTORS

Six
Eight directors are to be elected to serve until the next succeeding annual meeting of stockholders and thereafter until their respective successors shall be duly elected and qualified. Owners of Class A Common Stock are entitled to elect foursix directors and owners of Common Stock are entitled to elect the two remaining directors.
It is intended that proxies hereby solicited will be voted for the election of the nominees named below. Proxies will not be voted for a greater number of persons than the sixeight nominees named below. All nominees have consented to being named in the proxy statement and to serve if elected. If any nominee for election as a director shall become unavailable to serve as a director, then proxies will be voted for such substitute nominee as the Board of Directors may nominate.
The following information has been furnished to the Company by the respective nominees for director. Each nominee has been principally engaged in the employment indicated for the last five years unless otherwise stated.
NOMINEES --— CLASS A COMMON STOCK
RONALD D. BROWN --— Chairman, President and Chief Executive Officer, Milacron Inc.
Mr. Brown, 49,50, was elected a director of the Company in 2001. He is the Chairperson of the Nominating and Governance Committee of the Board and a member of the Personnel and Compensation Committee of the Board. Mr. Brown became chairman and chief executive officer of Milacron Inc. on June 1, 2001. He previously was president from September, 1999 through 2002;and chief operating officer from September, 1999 through May 31, 2001; and has been on the Board of Directors of Milacron Inc. since November, 1999. Mr. Brown served as chief financial officer of Milacron Inc. from 1993 through 1999. He joined Milacron Inc. in 1980. Milacron is a global leader in plastic processing and metalworking fluid technologies.
DENNIS J. MARTIN — Chairman, President and Chief Executive Officer, General Binding Corporation.
Mr. Martin, 53, was elected a director of the Company effective January 15, 2004. Mr. Martin became chairman, president and chief executive officer of General Binding Corporation on May 9, 2001. General Binding Corporation is the world’s leading manufacturer and marketer of systems to organize, bind, enhance, protect and present information. Prior to joining General Binding Corporation, he had been the executive vice president and chief executive officer of the Welding Products Group of Illinois Tool Works, Inc. Mr. Martin is a director of HON INDUSTRIES, Inc.
ROBERT J. O'TOOLE --O’TOOLE — Chairman of the Board President and Chief Executive Officer.
Mr. O'Toole, 62,O’Toole, 63, became chairman of the board in 1992. He is a member of the Investment Policy Committee of the Board. He was elected chief executive officer in March, 1989. He was elected president, chief operating officer and a director in 1986. Mr. O'TooleO’Toole joined the Company in 1963. He is a director of Briggs & Stratton Corporation, Factory Mutual Insurance Company, Marshall & Ilsley Corporation and Sensient Technologies Corporation.
BRUCE M. SMITH --— Chairman of the Board, President and Chief Executive Officer of Smith Investment Company.
Mr. Smith, 54,55, has been a director of the Company since 1995. He is a
memberthe Chairperson of the Investment Policy Committee and a member of the Personnel and Compensation Committee of the Board. He was elected chairman and chief executive officer of SICO on January 29, 1999, and was elected president of SICO in 1993. SICO is a diversified company which, through its wholly-owned subsidiaries, is involved in multicolor printing and related services and commercial warehousing, trucking and packaging. He was executive vice president of A. O. Smith Water Products
Company, a division of the Company, from 1991 through June, 1993 and managing
director of A. O. Smith Electric Motors (Ireland) Ltd., a subsidiary of the
Company, from 1988 to 1991. Mr. Smith originally joined the Company in 1978. Mr. Smith is a director of SICO. Mr. Smith is a first cousin of Mr. Mark D. Smith.
MARK D. SMITH --— Business Manager, Strattec Security Corporation.
Mr. Smith, 41,42, was elected a director of the Company in 2001. He is a member of the Audit Committee of the Board. He has served as a productcustomer business manager for Strattec Security Corporation since 1997. Strattec Security Corporation designs, develops, manufactures and markets mechanical locks, electro-mechanical locks and related security products for major automotive manufacturers. From 1994 to 1997, Mr. Smith was an operations manager of A. O.
Smith Automotive Products Company, a former division of the Company. Mr. Smith is a first cousin of Mr. Bruce M. Smith.

5
GENE C. WULF — Chief Financial Officer, Vice President and Treasurer, Bemis Company, Inc.
Mr. Wulf, 53, was elected a director of the Company in 2003. He is a member of the Audit Committee of the Board. Mr. Wulf was elected vice president, chief financial officer, and treasurer of Bemis Company, Inc. in 2002. He previously was vice president and controller from 1998 through 2002 and vice president and assistant controller from 1997 through 1998. Mr. Wulf joined Bemis Company, Inc. in 1975 and served in various accounting and financial positions. Bemis Company, Inc. is the largest flexible packaging company in the Americas and a major manufacturer of pressure sensitive materials used in labels, decorating and signage.
NOMINEES --— COMMON STOCK
WILLIAM F. BUEHLER --— Retired Vice Chairman of the Board of Directors, Xerox Corporation.
Mr. Buehler, 63,64, was elected a director of the Company in 1998. He is the chairperson of the Personnel and Compensation Committee and a member of the Nominating and Governance Committee of the Board. Mr. Buehler was vice chairman of the board of directors and president-Industrypresident–Industry Solutions Operations of Xerox Corporation from April of 1999 through 2000. He joined Xerox Corporation in 1991 as executive vice president and chief staff officer. Xerox Corporation is a leader in the global document market, providing document solutions that enhance business productivity. Prior to joining Xerox, he spent 27 years with AT&T Corporation. Mr. Buehler is a director of Quest Diagnostics.
KATHLEEN J. HEMPEL --— Former Vice Chairman and Chief Financial Officer, Fort Howard Corporation.
Ms. Hempel, 52,53, was elected a director of the Company in 1998. She is the chairperson of the Audit Committee of the Board. Ms. Hempel was vice chairman and chief financial officer of Fort Howard Corporation from 1992 until its merger into Fort James Corporation in 1997. Ms. Hempel joined Fort Howard Corporation in 1973. Fort Howard Corporation manufactured paper and paper products. She is also a director of Actuant Corporation, Kennametal Corporation, Oshkosh Truck Corporation and Whirlpool Corporation, Kennametal Corporation and Actuant Corporation.

BOARD COMMITTEES

GOVERNANCE OF THE COMPANY
The Board of Directors
The business of the Company serves as a committeeis managed under the direction of the whole
for designating nominees for election as director. The Board of Directors, will
consider written recommendations directedwho are elected by the stockholders. Directors meet their responsibilities by participating in meetings of the Board of Directors and Board committees on which they sit, through communication with our Chairman and Chief Executive Officer and other officers and employees, by consulting with independent auditors and other third parties, by reviewing materials provided to them, and by visiting our offices and plants. During 2003, the Board held five regular meetings and two special meetings. The Committees of the Board of Directors held a total of 24 meetings. All directors attended at least 75% of the scheduled Board and Committee meetings.
The Company is committed to a Board in which a majority of its members consist of independent directors, as defined under the New York Stock Exchange (“NYSE”) Rules. The Board has reviewed the independence of its members, applying the NYSE Rules and considering any other commercial, legal, accounting and familial relationships between the directors and the Company. The Board has determined that Ms. Hempel and
Messrs. Brown, Buehler, Martin, Wulf and Mark D. Smith meet the NYSE independence requirements. Mr. O’Toole is considered a management director by virtue of his position as an executive officer of the Company. With respect to Mr. Bruce M. Smith, the Board determined that he is a non-management director but not independent due to his executive officer position with SICO, the Company’s largest stockholder with a controlling interest in the Company. The Board has elected to exercise the “Controlled Company” exemption under the NYSE Rules with respect to Mr. Bruce Smith’s participation on the Personnel and Compensation Committee. In this regard, the Board determined that Mr. Bruce Smith uniquely represents the best interests of stockholders by virtue of his position with SICO and should continue to serve on this Committee. The Board has not elected to exercise this exemption in any other respect.
The Board recognizes that the NYSE Rules require financial literacy of Audit Committee members only. Notwithstanding, as a best practice, the Board has reviewed the qualifications and experience of its members and determined that each director is financially literate within the meaning of the NYSE Rules.
The non-management directors of the Board are scheduled to meet in executive session without management present at least twice per year, with the objective of holding such sessions in conjunction with each regular meeting of the Board. They may also meet at such other times as the members shall deem appropriate. The presiding director at these meetings rotates among the Chairpersons of the following committees in this order: Nominating and Governance Committee, Personnel and Compensation Committee and Audit Committee.
Stockholders wishing to communicate with the presiding director may send correspondence to the Chairman fromPresiding Director, c/o W. David Romoser, Corporate Secretary, A. O. Smith Corporation, 11270 West Park Place, P.O. Box 245009, Milwaukee, Wisconsin 53224-9509. Further, stockholders concerning nominees for director. wishing to communicate with individual directors may follow the same procedure. All correspondence should be in a sealed envelope marked “Confidential” and will be forwarded unopened to the presiding director or other director, as appropriate.
Board Committees
The Board of Directors has threedelegated some of its authority to committees of the Board. There are four standing Committees:committees: the Audit Committee, the Personnel and Compensation Committee, the Investment Policy Committee, and the Nominating and Governance Committee.
The Audit Committee.

In 2002,Committee consists of three members who meet the Personnelindependence and Compensation Committee held four meetings,financial literacy requirements of the Investment Policy Committee held four meetingsNYSE and the Securities and Exchange Commission (“SEC”). The Audit Committee’s duties include appointing the firm that will act as independent auditors for the Company, subject to ratification by the Board and its stockholders. In addition, the Audit Committee is responsible for reviewing the audit procedures and internal controls of the Company. The Audit Committee’s duties and responsibilities are set forth in its Charter, which has been approved by the Board of Directors. It is attached to this proxy as Exhibit A and is available on the Company’s website. The Board of Directors has determined that both Ms. Hempel and Mr. Wulf qualify as “audit committee financial experts” as defined by the SEC. The Audit Committee met four times during 2003 and additionally held threeeight telephonic meetings. The Report of the Audit Committee is included as part of this proxy.
The Personnel and Compensation Committee is responsible for establishing and administering the Company'sCompany’s compensation and benefit plans for officers, executives and management employees, including the determination of eligibility for participation in such plans. The Committee consists of three members, each
of whom is an outside director of the Company. It determines the compensation to be paid to officers and certain other selected executives. executives, and evaluates the performance of the chairman and chief executive officer in light of established goals and objectives. The Personnel and Compensation Committee’s duties and responsibilities are set forth in its Charter, which has been approved by the Board and is available on the Company’s website. The Committee consists of three non-employee outside directors. The Committee held three regular meetings and three special meetings during 2003. The Personnel and Compensation Committee Report is included as part of this proxy.
The Investment Policy Committee is responsible for investment policy and certain other matters for all Company retirement funds and other employee benefit funds. The Committee consists of threetwo members. The Investment Policy Committee held four meetings during 2003.
The Nominating and Governance Committee assists the Board in identifying qualified candidates for election as Board members, twoand establishes and periodically reviews criteria for selection of whom are outsidedirectors. Further, the Committee provides direction to the Board as to the independence, financial literacy and financial expertise of directors, and the composition of the Company.Board and its committees. As part of its responsibilities, the Committee also oversees the process to assess Board and committee effectiveness, implements corporate governance guidelines and advises the Board on corporate governance matters. The Audit Committee selects the firm that will act as independent auditors for the
Companyresponsibilities and has the responsibility to review audit procedures and the internal
controlsduties of the Company. The AuditNominating and Governance Committee operates under a charterare set forth in its Charter, which washas been approved by the Board of Directors.and is available on the Company’s website. The Committee consists of threetwo members, eachboth of whom is an outside directorare independent under the NYSE rules. The Nominating and Governance Committee was formed in April, 2003 and, since its formation, met twice in 2003. The Report of the Company. Nominating and Governance Committee is included as part of this proxy.
The Nominating and Governance Committee will consider candidates recommended by stockholders, directors, officers, third-party search firms and other sources for nomination as a director. The Committee considers the needs of the Board and evaluates each director candidate in light of, among other things, the candidate’s qualifications. All candidates’ qualifications are identified in the Corporate Governance Guidelines and the Criteria for Selecting Board of Directors,
pursuantDirector Candidates, both of which can be found on the Company’s website by clicking on “Corporate Governance” and then on the specific document. To summarize, all stockholder recommended candidates should be independent and possess substantial and significant experience which would be of value to the rulesCompany in the performance of the New York Stock Exchange, has determinedduties of a director. Recommended candidates must be of the highest character and integrity, free of any conflicts of interest, have an inquiring mind and vision, and possess the ability to work collaboratively with others. Each candidate must have the time available to devote to Board activities and be of an age that, (a)
all ofif elected, the candidate could serve on the Board for at least five years before reaching the mandatory retirement age. Finally, the Company believes it appropriate for certain key members of the Audit Committee have no relationshipCompany’s management to the
Corporation that may interfere with the exercise of their independence from
management and the Corporation; (b) each of the Audit Committee members is
financially literate,participate as such qualification is interpreted in the Board's
business judgment; and (c) one or more members of the Audit Committee possess
accounting or related financial management expertise, as such qualification is
interpretedBoard, while recognizing that a majority of independent directors must be maintained at all times. All candidates will be reviewed in the Board'ssame manner, regardless of the source of the recommendation.
A stockholder recommendation of a director candidate must be received no later than the date for submission of stockholder proposals. Please see the section of this proxy entitled “Date for Stockholder Proposals.” The recommendation letter should be sent by mail to the Chairperson, Nominating and Governance Committee, c/o W. David Romoser, Corporate Secretary, A. O. Smith Corporation, 11270 West Park Place, P.O. Box 245009, Milwaukee, Wisconsin 53224-9509.
The recommendation letter must, at a minimum, provide the stockholder’s name; address; the number and class of shares owned; the candidate’s biographical information, including name, residential and business judgment.

DIRECTOR COMPENSATION

address, telephone number, age, education, accomplishments, employment history (including positions held and current position), and current and former directorships; and the stockholder’s opinion as to whether the stockholder recommended candidate meets the definitions of “independent” and “financially literate” under the NYSE rules. In addition, the recommendation letter must provide the information that would be required to be disclosed in the solicitation of proxies for election of directors under federal securities laws. The stockholder must include the candidate’s statement that he/she meets these requirements and those identified on the Company’s website; is willing to promptly complete the Questionnaire required of all officers, directors and candidates for nomination to the Board; will provide such other information as the Committee may reasonably request; and consents to serve on the Board if elected.
Director Compensation
With respect to fiscal 2002,2003, directors received an annual retainer, paid quarterly, in the amount of $20,000$30,000 and the award of shares of Common Stock with a market value of $10,000$15,000 on the date of its award. Directors also received $1,200 for attendance at each Board meeting, plus expenses and received $500 for each telephonic Board and Committee meeting. Each Audit, and Personnel and Compensation, and Nominating and Governance Committee member received $3,000, and the chairperson of each received $4,000 annually; Committee members also received $1,000 per meeting, plus expenses. Each Investment Policy Committee member received $3,000, and the
chairperson received $4,000 annually; Committee members also received $2,000 per meeting, plus expenses. Directors who are employees of the Company are not compensated for service as directors or Committee members or for attendance at Board or Committee meetings. During 2002,
In 2003, the Board implemented a totalrequirement that every new director participate in a detailed orientation at the Company’s World Headquarters. This encompasses a review of five regularbusiness and financial operations, meetings with business executives and one special meetingothers, and an overview of the Board of Directors were held; allCompany’s commitment to corporate governance generally and specific policies and procedures. New directors attended
at least 75% of the number of Board meetings and Committee meetings, in the
aggregate, on which the director served as a member.

are paid $1,000 to compensate them for their time devoted to orientation matters.
Certain directors have elected to defer payment of their fees and receipt of Common Stock shares under the Corporate Directors'Directors’ Deferred Compensation Plan (the "Directors' Plan"“Directors’ Plan”). The Directors'Directors’ Plan allows directors to defer all or a portion (not less than 50%) of their fees until a later date, but not later than the year in which age 71 is attained. Payments can be made in a lump sum or in not more than ten annual installments.

SECURITY
STOCK OWNERSHIP OF DIRECTORS AND MANAGEMENT

Security Ownership of Directors and Management
The following table shows, as of DecemberJanuary 31, 2002,2004, the Class A Common Stock and Common Stock of the Company and the Class A Common Stock and Common Stock options exercisable on or before March 1, 2003,2004, beneficially owned by each director, each nominee for director, each named executive officer in the Summary Compensation Table and by all directors and executive officers as a group.

AMOUNT AND NATURE OF PERCENT
NAME TYPE OF STOCK*
Name
Type of Stock** BENEFICIAL OWNERSHIP(1) OF CLASS
---- --------------- ----------------------- --------

Glen R. Bomberger Common Stock 255,295 shares 1.25%

Amount and Nature of
Beneficial Ownership(1)
Percent
of Class
Ronald D. Brown Common Stock 1,570 2,124 shares *
William F. Buehler Common Stock 4,137 4,691 shares *
Donald M. Heinrich Common Stock 145,885 shares(2) 176,865 shares ⁽²⁾ *
Kathleen J. Hempel Common Stock 3,801 4,355 shares *
Kenneth W. Krueger Common Stock 129,100 shares(2) 163,500 shares ⁽²⁾ *
Dennis J. Martin Common Stock 111 shares *
Ronald E. Massa Common Stock 192,181 shares(2) *
223,581 shares ⁽²⁾ 1.08 %
Robert J. O'Toole O’Toole Common Stock 1,215,320 shares(2) 5.94%
Dr. Agnar Pytte Common Stock 7,569 1,342,020 shares *
⁽²⁾ 6.46 %
W. David Romoser Common Stock 179,641 shares(2) 200,491 shares ⁽²⁾ *
Bruce M. Smith(3) Smith⁽³⁾ Common Stock 2,649 3,203 shares *
Mark D. Smith(3) Smith⁽³⁾ Common Stock 905 1,459 shares *
Gene C. Wulf Common Stock 402 shares *
All 1920 Directors, Nominees and Executive Officers as a Group Common Stock 2,741,481 shares ⁽²⁾ 13.19 %
* Represents less than one percent.
** None of the directors, nominees and executive officers have beneficial ownership of Class A Common Stock 2,686,332 shares(2) 13.12%
(see footnote 3 below).

- ---------------
* Represents less than one percent.

** None of the directors, nominees and executive officers have beneficial
ownership of Class A Common Stock (see footnote 3 below).

(1) Except as otherwise noted, all securities are held with sole voting and sole
dispositive power.

(2) Includes 865,450; 181,075; 123,600; 137,900; 124,500; and 2,112,950 shares
of Common Stock subject to options exercisable on or before March 1, 2003,
respectively for Messrs. O'Toole, Massa,
⁽¹⁾ Except as otherwise noted, all securities are held with sole voting and sole dispositive power.
⁽²⁾ Includes 970,850; 150,500; 156,600; 207,975; 151,400; and 2,171,800 shares of Common Stock subject to options exercisable on or before March 1, 2004, respectively for Messrs. O’Toole, Krueger, Romoser, Massa and Heinrich and for all directors and executive officers as a group. Please refer to the Option Grants and Option Exercise Tables for additional stock option information.
⁽³⁾ Excludes shares beneficially owned by SICO.
Compliance with Section 16(a) of the Securities Exchange Act
Section 16(a) of the Securities Exchange Act of 1934 requires the Company’s directors and executive officers, asand persons who own more than ten percent of a group. Please referregistered class of the Company’s equity securities, to file reports of ownership and changes in ownership with the Option GrantsSecurities and Option Exercise Tables for additional stock option
information.

(3) Excludes shares beneficially ownedExchange Commission and the New York Stock Exchange. Executive officers, directors and greater than ten percent shareholders are required by SICO.

7
SEC regulations to furnish the Company with copies of all Section 16(a) Forms 3, 4 and 5 which they file.
Based solely on its review of the copies of such forms received by the Company and written representations from certain reporting persons during fiscal year 2003, the Company believes that all filing requirements applicable to its executive officers, directors and greater than ten percent beneficial owners were met.
EXECUTIVE COMPENSATION
The SUMMARY COMPENSATION TABLE reflects all compensation awarded to, earned by or paid to each of the Company'sCompany’s five most highly compensated executive officers, including the chief executive officer, during fiscal year 2002,2003, as well as all compensation awarded, earned or paid in the two previous fiscal years.

- --------------------------------------------------------------------------------

SUMMARY COMPENSATION TABLE
- --------------------------------------------------------------------------------

LONG-TERM
ANNUAL COMPENSATION COMPENSATION
- ------------------------------------------------------------------------------- --------------------
AWARDS
--------------------
OTHER RESTRICTED
ANNUAL STOCK OPTIONS ALL OTHER
NAME AND COMPENSATION AWARDS GRANTED COMPENSATION
PRINCIPAL POSITION YEAR SALARY($)(1) BONUS($)TABLE
Annual Compensation
Long-Term
Compensation
Awards
Name and
Principal Position
Year
Salary ($)(2)⁽¹⁾
Bonus ($)(3) (#)(4)
Other
Annual
Compensation
($)⁽²⁾
Restricted
Stock
Awards
($)⁽³⁾
Options
Granted
(#)⁽⁴⁾
All Other
Compensation
($)^{(5)
- ------------------ ---- ------------ -------- ------------ ---------- ------- ------------}
Robert J. O'Toole 2002 773,000 735,000 69,392 572,544 105,400 42,144
O’Toole
Chairman President and 2001 773,000 235,000 63,308 N/A 181,800 26,572
Chief
Executive Officer 2000 733,000 600,000 89,395
2003
2002
2001 804,000
773,000
773,000 650,000
735,000
235,000 69,956
69,392
63,308 617,700
572,544
N/A 196,900 62,046

Ronald E. Massa
101,200
105,400
181,800 38,588
42,144
26,572
Kenneth W. Krueger
Senior Vice President &
Chief Financial Officer
2003
2002
2001 315,000
310,000
295,417 150,000
177,000
51,000 21,318
22,604
21,994 130,500
120,960
N/A 25,800
26,900
46,300 21,323
23,048
16,458
W. David Romoser
Vice President, General
Counsel and Secretary
2003
2002
2001 277,000
259,000
259,000 126,000
140,000
44,000 22,354
23,558
24,018 104,400
96,768
N/A 17,900
18,700
32,200 12,534
13,619
8,560
Ronald E. Massa
Senior Vice President &
President of A. O. Smith 2002 294,000 255,000 23,261 120,960 26,900 150,960

Water Products Company, 2001 288,583 210,000 17,713 N/A 46,300 10,237

a division of the Company 2000 275,583 120,000 20,269
2003
2002
2001 301,000
294,000
288,583 70,000
255,000
210,000 21,466
23,261
17,713 130,500
120,960
N/A 50,200 56,075

Kenneth W. Krueger 2002 310,000 177,000 22,604 120,960 25,800
26,900 23,048

46,300 30,923
150,960
10,237
Donald M. Heinrich
Senior Vice President & 2001 295,417 51,000 21,994 N/A 46,300 16,458
Chief Financial Officer 2000 114,433 200,000 2,912 N/A 77,300 139,265

W. David Romoser 2002 259,000 140,000 23,558 96,768 18,700 13,619
Vice President, General 2001 259,000 44,000 24,018 N/A 32,200 8,560
Counsel and Secretary 2000 257,000 115,000 25,342 N/A 34,900 12,629

Donald M. Heinrich
Senior Vice President &

President of A. O. Smith 2002 295,000 80,000 20,702 120,960 26,900 20,620

Electrical Products Company, 2001 N/A N/A N/A N/A N/A N/A

a division of the Company 2000
2003
2002
2001 301,000
295,000
N/A 59,000
80,000
N/A 18,949
20,702
N/A 130,500
120,960
N/A 25,800
26,900
N/A 14,477
20,620
N/A

- --------------------------------------------------------------------------------
(1) Includes amounts earned during 2002 even if deferred.

(2) Reflects amounts of tax reimbursements in 2002.

(3) In 2002, restricted stock was awarded under the Combined Executive
Incentive Compensation Plan as follows: Mr. O'Toole -- 21,300 shares, Mr.
Massa -- 4,500 shares, Mr. Krueger -- 4,500 shares, Mr. Romoser -- 3,600
shares and Mr. Heinrich -- 4,500 shares. Dividends on shares of restricted
stock granted under the Combined Executive Incentive Compensation Plan are
credited to each individual's Supplemental Benefit Plan account. The number
of shares of restricted stock held by the officers identified in the table
and the market value of such shares as of December 31, 2002, were as
follows: Mr. O'Toole -- 21,300 shares ($575,313), Mr. Massa -- 4,500 shares
($121,545), Mr. Krueger -- 4,500 shares ($121,545), Mr. Romoser -- 3,600
shares ($97,236) and Mr. Heinrich -- 4,500 shares ($121,545).

(4) See footnote (1) in Option Grants Table as to grants in 2002.

(5) All Other Compensation for 2002 includes the amounts of: (a) Company
contributions under the Profit Sharing Retirement Plan (a 401(k) plan) and
accruals under the Supplemental Benefit Plan for the 401(k) plan, and (b)
the amount of premiums paid by the Company for the benefit of such persons
for certain split dollar post retirement life insurance policies. The
amounts paid in 2002 are as follows: Mr. O'Toole -- (a) $33,912 and (b)
$8,232; Mr. Massa -- (a) $12,898, (b) $3,312, and $98,000 relocation fees
plus $36,750 home purchase program in connection with his relocation; Mr.
Krueger -- (a) $13,600 and (b) $9,448; Mr. Romoser -- (a) $11,363 and (b)
$2,256; and Mr. Heinrich -- (a) $12,942, (b) $1,702, and $5,976 home
purchase program in connection with his relocation.

8
⁽¹⁾ Includes amounts earned during 2003 even if deferred.
⁽²⁾ Reflects amounts of tax reimbursements in 2003.
⁽³⁾ In 2003, restricted stock was awarded under the Combined Executive Incentive Compensation Plan as follows: Mr. O’Toole – 21,300 shares, Mr. Krueger – 4,500 shares, Mr. Romoser – 3,600 shares, Mr. Massa – 4,500 shares, and Mr. Heinrich – 4,500 shares. Dividends on shares of restricted stock granted under the Combined Executive Incentive Compensation Plan are credited to each individual’s Supplemental Benefit Plan account. The number of shares of restricted stock held by the officers identified in the table and the market value of such shares as of December 31, 2003, were as follows: Mr. O’Toole – 35,500 shares ($1,244,275), Mr. Krueger – 7,500 shares ($262,875), Mr. Romoser – 6,000 shares ($210,300), Mr. Massa – 7,500 shares ($262,875), and Mr. Heinrich – 7,500 shares ($262,875).
⁽⁴⁾ See footnote (1) in Option Grants Table as to grants in 2003.
⁽⁵⁾ All Other Compensation for 2003 includes the amounts of: (a) Company contributions under the Profit Sharing Retirement Plan (a 401(k) plan) and accruals under the Supplemental Benefit Plan for the 401(k) plan, and (b) the amount of premiums paid by the Company for the benefit of such persons for certain split dollar post retirement life insurance policies. The amounts paid in 2003 are as follows: Mr. O’Toole – (a) $30,436 and (b) $8,152; Mr. Krueger – (a) $11,925 and (b) $9,398; Mr. Romoser – (a) $10,486 and (b) $2,048; Mr. Massa – (a) $11,395, (b) $3,195, and $16,333 home purchase program in connection with his relocation; and Mr. Heinrich – (a) $11,395, (b) $1,588, and $1,494 home purchase program in connection with his relocation.
STOCK OPTION GRANTS
The table below reflects the stock option grants made under the Long-Term Executive Incentive Compensation Plan and the Combined Executive Incentive Compensation Plan to the five named executive officers during 2002.

- --------------------------------------------------------------------------------
OPTION GRANTS TABLE
- --------------------------------------------------------------------------------

Option Grants in 2002

2003.
OPTION GRANTS TABLE
Option Grants in 2003
Individual Grants
Potential Realizable Value at
Assumed Annual Rates of
Stock Price Appreciation
for Option Term⁽²⁾
Name
Options
Granted⁽¹⁾
(#)
% of
Total
Options
Granted
to all
Employees
Exercise
Price
($/Sh)
Expiration
Date
5%
($)
10%
($)
Robert J. O’Toole 101,200 35.33% $ 28.70 10/07/2013 $ 1,826,587 $ 4,628,929
Kenneth W. Krueger 25,800 9.01% $ 28.70 10/07/2013 $ 465,671 $ 1,180,103
W. David Romoser 17,900 6.25% $ 28.70 10/07/2013 $ 323,082 $ 818,753
Ronald E. Massa 25,800 9.01% $ 28.70 10/07/2013 $ 465,671 $ 1,180,103
Donald M. Heinrich 25,800 9.01% $ 28.70 10/07/2013 $ 465,671 $ 1,180,103
Totals 196,500 68.61% N/A N/A $ 3,546,682 $ 8,987,991
All Stockholders (29,246,013
shares of Class A Common
Stock and Common Stock) N/A N/A N/A N/A $ 528,797,161 $ 1,334,583,311
Named Executive Officers’% of Total Outstanding Shares N/A .67% N/A N/A .67% .67%

POTENTIAL REALIZABLE VALUE AT
ASSUMED ANNUAL RATES OF
STOCK PRICE APPRECIATION
INDIVIDUAL GRANTS FOR OPTION TERM(2)
- ---------------------------------------------------------------------------- -----------------------------
% OF
TOTAL
OPTIONS
OPTIONS GRANTED EXERCISE
GRANTED(1) TO ALL PRICE EXPIRATION 5% 10%
NAME (#) EMPLOYEES ($/SH) DATE ($) ($)
---- ---------- --------- -------- ---------- ------------ --------------

Robert J. O'Toole 105,400 35.6% $26.880⁽¹⁾ Options were granted under the Combined Executive Incentive Compensation Plan. The options were granted on 10/11/2012 $ 1,781,754 $ 4,515,315
Ronald E. Massa 26,900 9.1% $26.880 10/11/2012 $ 454,736 $ 1,152,391
Kenneth W. Krueger 26,900 9.1% $26.880 10/11/2012 $ 454,736 $ 1,152,391
W. David Romoser 18,700 6.3% $26.880 10/11/2012 $ 316,118 $ 801,104
Donald M. Heinrich 26,900 9.1% $26.880 10/11/2012 $ 454,736 $ 1,152,391
------- ----- ------------ --------------
Totals 204,800 69.1% N/A N/A $ 3,462,080 $ 8,773,592
======= ===== ============ ==============
All Stockholders (29,039,923
shares of Class A07/03 as options to acquire Common Stock and are first exercisable on 10/07/04. All options were granted at the average of market value on the date of grant and have a 10-year term.
⁽²⁾ The dollar values in these columns representassumed rates of appreciation only, over the 10-year option term, at the 5% and 10% rates of appreciation set by the Securities and Exchange Commission rules. These amounts are not intended to predict or represent possible future appreciation of the Company’s Common Stock) N/A N/A N/A N/A $491,773,672 $1,241,143,077
Named Executive Officers' %Stock value. Actual gains, if any, on stock option exercises and Common Stock holdings depend on future performance of Total Outstanding
Shares N/A .71% N/A N/A .70% .71%
the Company’s Common Stock and overall stock market conditions.

- --------------------------------------------------------------------------------
(1) Options were granted under the Long-Term Executive Incentive Compensation
Plan and the Combined Executive Incentive Compensation Plan. The options
were granted on 10/11/02 as options to acquire Common Stock and are first
exercisable on 10/11/03. All options were granted at the average of market
value on the date of grant and have a 10-year term.

(2) The dollar values in these columns represent assumed rates of appreciation
only, over the 10-year option term, at the 5% and 10% rates of appreciation
set by the Securities and Exchange Commission rules. These amounts are not
intended to predict or represent possible future appreciation of the
Company's Common Stock value. Actual gains, if any, on stock option
exercises and Common Stock holdings depend on future performance of the
Company's Common Stock and overall stock market conditions.

9
OPTION EXERCISES AND YEAR-END VALUES
The table includes information related to options exercised by the five named executive officers during fiscal year 20022003 and the number and value of options held at the end of the fiscal year.

- --------------------------------------------------------------------------------
OPTION EXERCISES AND YEAR-END VALUE TABLE
- --------------------------------------------------------------------------------

Aggregated Option Exercises in Fiscal Year 2002,
OPTION EXERCISES AND YEAR-END VALUE TABLE
Aggregated Option Exercises in Fiscal Year 2003, and December 31, 2003, Option Values
Name
Shares Acquired
on Exercise (#)
Value
Realized ($)
Number of Securities
Underlying Unexercised
Options at
December 31, 2003
Value of Unexercised
In-the-Money Options at
December 31, 2003 ($)⁽¹⁾
Exercisable
Unexercisable
Exercisable
Unexercisable
Robert J. O’Toole 0 $ 0 970,850 101,200 $ 16,125,688 $ 642,620
Kenneth W. Krueger 0 $ 0 150,500 25,800 $ 1,786,272 $ 163,830
W. David Romoser 0 $ 0 156,600 17,900 $ 2,429,142 $ 113,665
Ronald E. Massa 0 $ 0 207,975 25,800 $ 3,981,777 $ 163,830
Donald M. Heinrich 0 $ 0 151,400 25,800 $ 2,236,979 $ 163,830
⁽¹⁾ Based on the difference between the option exercise price and the closing price on the New York Stock Exchange of $35.05 for the Common Stock on December 31, 2002, Option
Values

NUMBER OF SECURITIES
UNDERLYING UNEXERCISED VALUE OF UNEXERCISED
OPTIONS AT IN-THE-MONEY OPTIONS AT
DECEMBER 31, 2002 DECEMBER2003.
PENSION PLAN TABLE⁽¹⁾
Years of Service⁽³⁾
Remuneration⁽²⁾
10
20
25
30
35
40
$250,000 $ 41,250 $ 82,500 $ 103,125 $ 123,750 $ 144,375 $ 165,000
350,000 57,750 115,500 144,375 173,250 202,125 231,000
400,000 66,000 132,000 165,000 198,000 231,000 264,000
500,000 82,500 165,000 206,250 247,500 288,750 330,000
750,000 123,750 247,500 309,375 371,250 433,125 495,000
1,000,000 165,000 330,000 412,500 495,000 577,500 660,000
1,250,000 206,250 412,500 515,625 618,750 721,875 825,000
1,500,000 247,500 495,000 618,750 742,500 886,250 990,000
⁽¹⁾ The Pension Plan Table shows estimated aggregate annual benefits payable to an executive officer upon retirement under the A. O. Smith Retirement Plan and the A. O. Smith Corporation Executive Supplemental Pension Plan. The A. O. Smith Corporation Executive Supplemental Pension Plan is a nonqualified excess benefit and supplemental retirement plan intended to provide benefits that participants would receive under the A. O. Smith Retirement Plan if the A. O. Smith Retirement Plan were not subject to certain limitations that the Internal Revenue Code imposes on benefits payable under it and if the A. O. Smith Retirement Plan took into account 100%, rather than 50%, of bonus compensation. The calculations assume retirement at December 31, 2002($)(1)
SHARES ACQUIRED VALUE --------------------------- ---------------------------
NAME ON EXERCISE(#) REALIZED($) EXERCISABLE UNEXERCISABLE EXERCISABLE UNEXERCISABLE
---- --------------- ----------- ----------- ------------- ----------- -------------

Robert J. O'Toole 162,300 $2,617,088 865,450 105,400 $8,440,966 $13,702
Ronald E.2004, at age 65 and the final compensation and years of service set forth in the Table. Benefit amounts were computed on a straight-life annuity basis. Amounts payable to a participant as set forth in the Table are subject to offset in an amount that is based on the value of certain life insurance arrangements in effect for the participant and are not subject to any other offsets.
⁽²⁾ The compensation covered by the A. O. Smith Retirement Plan and the A. O. Smith Corporation Executive Supplemental Pension Plan is based on the average of the highest five years of annual compensation out of the last ten years prior to retirement. The amount included in the calculation of compensation, as reflected in the Summary Compensation Table, is Salary and Bonus; but it does not include Other Annual Compensation, Long-Term Compensation or All Other Compensation amounts.
⁽³⁾ Messrs. O’Toole, Krueger, Romoser, Massa 0 0 181,075 26,900 $1,741,569 $ 3,497
Kenneth W. Krueger 0 0 123,600 26,900 $1,515,600 $ 3,497
W. David Romoser 15,300 $ 126,887 137,900 18,700 $1,344,202 $ 2,431
Donald M.and Heinrich 22,650 $ 276,371 124,500 26,900 $1,253,865 $ 3,497

- --------------------------------------------------------------------------------

(1) Based on the difference between the option exercise price and the closing
price on the New York Stock Exchange of $27.01 for the Common Stock on
December 31, 2002.

- --------------------------------------------------------------------------------
PENSION PLAN TABLE(1)
- --------------------------------------------------------------------------------

YEARS OF SERVICE(3)
---------------------------------------------------------------
REMUNERATION(2) 10 20 25 30 35had 40, - --------------- -------- -------- -------- -------- -------- --------

250,000 $ 41,250 $ 82,500 $103,125 $123,750 $144,375 $165,000
350,000 57,750 115,500 144,375 173,250 202,125 231,000
400,000 66,000 132,000 165,000 198,000 231,000 264,000
500,000 82,500 165,000 206,250 247,500 288,750 330,000
750,000 123,750 247,500 309,375 371,250 433,125 495,000
1,000,000 165,000 330,000 412,500 495,000 577,500 660,000
1,250,000 206,250 412,500 515,625 618,750 721,875 825,000
1,500,000 247,500 495,000 618,750 742,500 886,250 990,000
3, 11, 26 and 11 years of service, respectively, at year-end.

- --------------------------------------------------------------------------------

(1) The Pension Plan Table shows estimated aggregate annual benefits payable to
an executive officer upon retirement under the A. O. Smith Retirement Plan
and the A. O. Smith Corporation Executive Supplemental Pension Plan. The A.
O. Smith Corporation Executive Supplemental Pension Plan is a nonqualified
excess benefit and supplemental retirement plan intended to provide benefits
that participants would receive under the A. O. Smith Retirement Plan if the
A. O. Smith Retirement Plan were not subject to certain limitations that the
Internal Revenue Code imposes on benefits payable under it and if the A. O.
Smith Retirement Plan took into account 100%, rather than 50%, of bonus
compensation. The calculations assume retirement at December 31, 2002, at
age 65 and the final compensation and years of service set forth in the
Table. Benefit amounts were computed on a straight-life annuity basis.
Amounts payable to a participant as set forth in the Table are subject to
offset in an amount that is based on the value of certain life insurance
arrangements in effect for the participant and are not subject to any other
offsets.

(2) The compensation covered by the A. O. Smith Retirement Plan and the A. O.
Smith Corporation Executive Supplemental Pension Plan is based on the
average of the highest five years of annual compensation out of the last ten
years prior to retirement. The amount included in the calculation of
compensation, as reflected in the Summary

Compensation Table, is Salary and Bonus; but it does not include Other
Annual Compensation, Long-Term Compensation or All Other Compensation
amounts.

(3) Messrs. O'Toole, Massa, Krueger, Romoser and Heinrich had 39, 25, 2, 10 and
10 years of service, respectively, at year-end.

COMPENSATION COMMITTEE INTERLOCKS AND INSIDER PARTICIPATION
The directors who served as members of the Personnel and Compensation Committee during fiscal year 20022003 were Ronald D. Brown, William F. Buehler and Bruce M. Smith.
During 2002,2003, the Company provided SICO consulting services; office space; directors'directors’, officers'officers’ and group insurance coverage and other miscellaneous services. The Company was reimbursed by SICO in the amount of $70,120$82,330 for the Company'sCompany’s costs relating to such services.

BOARD
PERSONNEL AND COMPENSATION COMMITTEE REPORT
ON EXECUTIVE COMPENSATION

The Personnel and Compensation Committee (the "Committee"“Committee”) of the Board of Directors is responsible for discharging the Board'sBoard’s responsibilities relating to compensation of the Company'sCompany’s executives, establishing an executive compensation program, and administering the executive compensation policies and plans of the Company. The Committee also determines the amount of compensation that the Company'sCompany’s chief executive officer and other executive officers receive annually. It reviews the chief executive officer performance, oversees management succession planning, and reviews and makes recommendations to the Board of Directors with respect to the compensation of all directors. The Committee has a written Charter which details its purpose and responsibilities. This Charter can be accessed at the Company’s website,www.aosmith.com.
The Committee consists of three members, each of whom is an outside non-management director of the Company. This report was prepared by the Committee to provide the Company'sCompany’s stockholders with a summary of its executive compensation policies and practices.
The Committee has two primary objectives relating to the Company'sCompany’s executive compensation program. The first is to recruit and retain high quality executive leadership which is committed to achieving the current and long-term successful and profitable operations of the Company'sCompany’s businesses. The other is to maintain an incentive compensation program which links executive pay to the stockholders'stockholders’ return on their investment in the Company.
In order to achieve these objectives, the Committee provides an executive compensation program competitive with other comparably sized manufacturing companies. The Committee believes that return on investment currently provides the best measure of performance because it closely correlates the benefits to the stockholders with the financial incentives for the executives. The Committee has established ranges for financial incentives based upon return on investment, with smaller incentive payments for a modest return on investment and larger incentive payments for greater returns.
The Company'sCompany’s executive compensation program consists of three components: base salary, short-term incentive (bonus) compensation and long-term incentive (stock options and restricted stock) compensation. In determining the executive compensation practices, the Committee compares the Company'sCompany’s executive compensation program with other companies'companies’ compensation programs for executives with similar management responsibilities. The companies surveyed include comparable manufacturing businesses. The Committee annually reviews executive compensation databases and also this year utilizedbiannually utilizes an independent compensation consultant for purposes of evaluating and reviewing the Company'sCompany’s executive compensation program.
The Committee has designated certain executives, including the chief executive officer ("CEO"(“CEO”), for compensation under the executive compensation program in accordance with the performance criteria and standards described below.

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BASE SALARY
The Committee establishes competitive salary ranges for the executive officers, generally at the median level of the salary ranges in the survey referred to above. In addition, the Committee reviews each executive'sexecutive’s performance and accomplishments during the prior year as well as experience and service with the Company in determining the annual base salary level for the executive within the applicable salary range. In 2002,2003, this methodology was followed in establishing base salaries for the executive officers.
SHORT-TERM INCENTIVE COMPENSATION
Short-term incentive compensation is provided under the shareholder-approved A. O. Smith Combined Executive Incentive Compensation Plan ("Plan"(“Plan”). The Plan, consistent with the Company'sCompany’s philosophy of linking compensation to the Company'sCompany’s return on investment, provides an opportunity for executives to earn a cash bonus, the amount of which is based upon the Company'sCompany’s and/or the operating unit'sunit’s return on investment. Each year the Committee sets minimum and maximum financial objectives for each of the business units and the corporation. Achievement of these financial objectives by the business or corporate units determines the amount of the Incentive Compensation Fund available for the award of individual executive bonuses.
Incentive compensation, while predicated on the executive'sexecutive’s unit meeting its financial objective, is also based upon achievement of strategic objectives established each year for the executive. In determining the amount of the incentive compensation award to be paid to an individual executive, the Committee considers the executive'sexecutive’s scope of responsibility, contributions to profit improvement and attainment of the individual'sindividual’s strategic objectives. Approximately half of the incentive compensation award distributed to the individual executive is based on the return on investment of the executive'sexecutive’s business unit and is formula-based between maximum and minimum target achievement. The other half of the award is based upon accomplishment of the executive'sexecutive’s strategic objectives, such as development of personnel, planning, maintenance of product leadership, continuous improvement programs and product and process research and development. In 2002,2003, the Committee made incentive compensation awards to the participating executives based on these factors.
The maximum amount of incentive compensation payable to an executive during any year is 200% of base salary. In order to be eligible for incentive compensation, executives are required to enter into annual contracts (standard Plan contracts required for all Plan participants) which obligate them to remain in the employment of the Company for the year.
LONG-TERM INCENTIVE COMPENSATION
The Committee utilizes the shareholder-approved A. O. Smith Combined Executive Incentive Compensation Plan ("Plan"(“Plan”) in annually making grants of stock options and restricted stock which are awarded to the executives at the market price of the stock on the dates of the respective grants. The size of the grants to the executive are established at a level commensurate with the median level of grants for the executive'sexecutive’s position as reported in the aforementioned survey data and a study by an independent compensation consultant. Pursuant to the Plan, executives enter into standard Plan contracts each year which reflect the specific terms of the stock option and the restricted stock grants and terms of forfeiture should the executive leave the employment of the Company.
CEO COMPENSATION
The Committee, in establishing the 20022003 compensation program for the Chief Executive Officer, Robert J. O'Toole,O’Toole, employed the methodology and surveys previously described in this report. In setting Mr. O'Toole'sO’Toole’s base salary for 2002,2003, the Committee reviewed his accomplishments during the prior year, experience, and service with the Company and determined to position it at the median level of salaries of chief executive officers of comparable manufacturing companies. Mr. O'Toole'sO’Toole’s bonus compensation for 20022003 was directly related to the return on investment earned by the Company and reflected Committee-set minimum and maximum objectives. The maximum amount of bonus compensation payable to Mr. O'TooleO’Toole is 200% of base salary. The Committee made stock option and restricted stock grants to Mr. O'TooleO’Toole under the Plan consistent with the methodology utilized in making grants to the other participating executives.
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CONCLUDING REMARKS
The Committee reviewed executive compensation during 20022003 and concluded that the stockholders'stockholders’ interests were well served by the executive compensation program. The Committee will continue to monitor and evaluate its executive compensation program and make any adjustments determined to be appropriate. The Committee has and intends to preserve the deductibility of executive compensation paid by the Company in accordance with the provisions of Section 162(m) of the Internal Revenue Code of 1986, as amended.
The Committee, in collaboration with the Chairman and Chief Executive Officer, was actively involved in the search for and recruitment of a President and Chief Operating Officer. As a result of its activity, the Board of Directors in December, 2003, on the recommendation of the Committee, elected Mr. Paul W. Jones to that office and he joined the Company on January 1, 2004.
PERSONNEL & COMPENSATION COMMITTEE
William F. Buehler, Chairperson
Ronald D. Brown, Member
Bruce M. Smith, Member
PERFORMANCE GRAPH
The graph below shows a five-year comparison of the cumulative shareholder return on the Company'sCompany’s common stock with the cumulative total return of the S&P Smallcap 600 Index and the S&P 600 Electrical Equipment Index, all of which are published indices.

COMPARISON OF FIVE YEAR CUMULATIVE TOTAL RETURN
FROM DECEMBER
Comparison of Five Year Cumulative Total Return
From December 31, 1997 TO DECEMBER1998 to December 31, 2002

ASSUMES2003
Assumes $100 INVESTED WITH REINVESTMENT OF DIVIDENDS

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INDEXED RETURNS
BASE YEARS ENDING
PERIOD --------------------------------------------------------
- -----------------------------------------------------------------------------------------------------------------------
COMPANY/INDEX 12/31/97 12/31/98 12/31/99 12/31/00 12/31/01 12/31/02
- -----------------------------------------------------------------------------------------------------------------------

A O SMITH CORP 100.00 88.79 80.57 64.70 76.20 107.73
- -----------------------------------------------------------------------------------------------------------------------
S&P SMALLCAP 600 INDEX 100.00 98.69 110.94 124.02 132.13 112.80
- -----------------------------------------------------------------------------------------------------------------------
S&P 600 ELECTRICAL EQUIPMENT 100.00 101.11 155.77 150.67 124.24 98.51
- -----------------------------------------------------------------------------------------------------------------------

COMPLIANCE WITH SECTION 16(A) OF THE
SECURITIES EXCHANGE ACT

Section 16(a)invested with Reinvestment of the Securities Exchange Act of 1934 requires the Company's
directors and executive officers, and persons who own more than ten percent of a
registered class of the Company's equity securities, to file reports of
ownership and changes in ownership with the Securities and Exchange Commission
and the New York Stock Exchange. Executive officers, directors and greater than
ten percent shareholders are required by SEC regulations to furnish the Company
with copies of all Section 16(a) Forms 3, 4 and 5 which they file.

Based solely on its review of the copies of such forms received by the
Company and written representations from certain reporting persons during fiscal
year 2002, the Company believes that all filing requirements applicable to its
executive officers, directors and greater than ten percent beneficial owners
were met.

Dividends
Base
Period INDEXED RETURNS
Years Ending
Company/Index 12/31/98 12/31/99 12/31/00 12/31/01 12/31/02 12/31/03
A O SMITH CORP 100.00 90.75 72.87 85.82 121.34 160.45
S&P SMALLCAP 600 INDEX 100.00 112.40 125.66 133.88 114.30 158.63
S&P 600 ELECTRICAL EQUIPMENT 100.00 154.07 149.03 122.89 97.44 122.89
REPORT OF THE AUDIT COMMITTEE
The primary responsibility of the Audit Committee is to oversee the Company'sCompany’s financial reporting process on behalf of the Board, to recommend the
appointment ofappoint the independent auditors, and to report the results of the Committee'sCommittee’s activities to the Board. Management has the primary responsibility for the financial statements and reporting process, including the systems of internal control, and Ernst & Young LLP (the independent auditors) is responsible for auditing those financial statements. We have reviewed and discussed with management and the independent auditors the Company'sCompany’s audited financial statements as of and for the year ended December 31, 2002.

2003.
During 2002,2003, the Audit Committee met four times. In addition, the Committee chair and other members of the Committee discussed the interim financial statements contained in SEC Forms 10-Q and in each quarterly earnings announcement with the chief financial officer, controller, and independent auditors prior to filing and public release.
We have discussed with the independent auditors the matters required to be discussed by Statement on Auditing Standards No. 61,Communication with Audit Committees, as amended, by the Auditing Standards Board of the American Institute of Certified Public Accountants. We have met with the internal and independent auditors, with and without management present, to discuss the results of their examinations, their evaluations of the Company'sCompany’s internal controls, and the overall quality of the Company'sCompany’s financial reporting.
We have received and reviewed the written disclosures and the letter from the independent auditors required by Independence Standards Board Standard No. 1,Independence Discussions with Audit Committees, as amended, by the Independence Standards
Board, and have discussed with the auditors their independence. In addition, we have considered the compatibility of nonaudit services with the auditors'auditors’ independence. Management is required to obtain our approval before engaging the independent auditors for nonaudit services. The Audit Committee has concluded the provision of the nonaudit services is compatible with maintaining the auditors’ independence.
In reliance on the reviews and discussions referred to above, we recommended to the Board of Directors that the audited financial statements, referred to above, be included in the Company'sCompany’s Annual Report on Form 10-K for the year ended December 31, 2002,2003, filed with the Securities and Exchange Commission. The Committee selectedappointed Ernst & Young LLP, as the Company'sCompany’s independent auditors for fiscal 20032004 and approved its estimated fees for audit and audit related services.

AUDIT COMMITTEE

Kathleen J. Hempel, Chairperson
Dr. Agnar Pytte, Committee Member

Mark D. Smith, Committee Member

14
Gene C. Wulf, Committee Member
APPOINTMENT OF INDEPENDENT AUDITORS
The Audit Committee of the Board of Directors of the Company has appointed Ernst & Young LLP, Certified Public Accountants, as the Company'sCompany’s independent auditors for 2003.2004. The Company paid the following fees to Ernst & Young LLP in 20022003 and 2001:

2002:
Audit Fees: Fees for the annual audit were $579,300 and $600,900 in 2003 and $409,900 in 2002,
and 2001, respectively. Audit fees consist of fees for the annual audit of the Company'sCompany’s financial statements, reviews of financial statements included in the Company'sCompany’s Form 10-Q filings, statutory audits for certain of the Company'sCompany’s foreign locations and other services performed related to regulatory filings.
Audit-Related Fees: Audit-related fees were $147,100 and $124,800 in 2003 and $212,100 in 2002,
and 2001, respectively. Audit-related fees are principally fees for acquisition due diligence and certain other accounting consultations.
Tax Fees: Tax fees were $444,000 and $802,750 in 2003 and $1,165,000 in 2002, and 2001, respectively, and consisted solelyprimarily of tax consulting services.
All Other Fees: None.
The Audit Committee has considered whether the fees of Ernst & Young LLP for nonaudit services is compatible with maintaining Ernst & Young LLP'sLLP’s independence.
Although not required to be submitted to a vote of the stockholders, the Board of Directors believes it appropriate to obtain stockholder ratification of the Audit Committee'sCommittee’s action in appointing Ernst & Young LLP as the Company'sCompany’s independent auditors. The Board of Directors has itself ratified the Audit Committee’s action. Should such appointment not be ratified, the Audit Committee of the Board of Directors will reconsider the matter.
REPORT OF THE NOMINATING AND GOVERNANCE COMMITTEE
The Nominating and Governance Committee met two times during the year. The Committee approved its charter, in which the Committee is responsible for the nomination of directors and the Company’s corporate governance practices. The Committee considered candidates for new director positions. It also took a leadership role in shaping the corporate governance of the Company. It recommended to the Board of Directors corporate governance guidelines, a code of business conduct and financial code of ethics, minimum qualifications for directors, the process and procedure for shareholder recommendation of director candidates and shareholder communications with the Board, which the Board adopted. The Committee arranged for the dissemination and disclosure of these and other corporate governance documents, including its charter, to employees and dissemination to shareholders via the Company’s website. The address of the website iswww.aosmith.com. These documents are also available upon request from the corporate secretary. No waivers were sought or granted from the Company’s code of conduct. The Committee is not aware of any situation or circumstance that would require a waiver.
The Committee reviewed the Board’s committee structure and operations and reported to the Board regarding them. The Committee also conducted an evaluation of its performance and oversaw the evaluation process to ensure that each of the other committees performed its own self-evaluation and reported on it to the Board of Directors.
Ronald D. Brown, Chairperson
William F. Buehler, Committee Member
OTHER BUSINESS
Management is not aware of any matters other than those stated above that may be presented for action at the meeting, but should any matter requiring a vote of the stockholders arise, it is intended that proxies solicited will be voted in respect thereof in accordance with the discretion of the person or persons voting the proxies.
BOARD INFORMATION AND STOCKHOLDER COMMUNICATIONS
The Company is committed to making its corporate governance information accessible to stockholders and other interested parties. Accordingly, on its website,www.aosmith.com, under the Corporate Governance heading, the Company has published the A. O. Smith Corporation Guiding Principles, Financial Code of Ethics, Corporate Governance Guidelines, Criteria for Selecting Board of Director Candidates, a list of the Board of Directors and Committee Assignments, and the Charters for the Audit, Personnel and Compensation, Nominating and Governance, and Investment Policy Committees. Further, SEC filings, including the Company’s Form 10-K and Section 16 filings, are available for review on this website under the heading “Investor Relations.” Stockholders may also request that these documents be mailed by sending their request to the address provided below.
The Company encourages stockholder communication with directors. Stockholders may communicate with a particular director, all directors or the presiding director by mail or courier addressed to him/her or the entire Board in care of the Corporate Secretary at the following address:
c/o W. David Romoser, Corporate Secretary
A. O. Smith Corporation
11270 West Park Place
P.O. Box 245009
Milwaukee, Wisconsin 53224-9509
The Corporate Secretary will forward this communication unopened to the addressed director.
DATE FOR STOCKHOLDER PROPOSALS
Proposals of stockholders intended to be presented at the 20042005 annual meeting of stockholders, including recommendations of candidates to be elected to the Board, must be received by the Company no later than November 4, 2003,5, 2004, to be included in the Company'sCompany’s proxy materials for the 20042005 meeting. If a stockholder who otherwise desires to bring a proposal before the 20042005 meeting does not notify the Company of its intent to do so on or before January 19, 2004,2005, then the proposal will be untimely, and the proxies will be able to vote on the proposal in their discretion.
March 5, 2003

3, 2004
EVEN IF YOU PLAN TO ATTEND THE MEETING, PLEASE COMPLETE, DATE AND SIGN THE ENCLOSED PROXY AND MAIL IT PROMPTLY IN THE ENCLOSED ENVELOPE, OR VOTE YOUR SHARES VIA THE TELEPHONE OR INTERNET. IF YOU ATTEND THE MEETING, YOU MAY REVOKE YOUR PROXY AND VOTE YOUR SHARES IN PERSON.

[AO
EXHIBIT A
A. O. Smith Corporation
Audit Committee Charter
The Audit Committee will assist the Board of Directors in fulfilling the Board’s oversight responsibilities relating to (i) the integrity of the Company’s financial statements and the financial reporting process, (ii) the Company’s compliance with legal and regulatory requirements, (iii) the independent auditor’s qualifications and independence and (iv) the performance of the Company’s internal audit function and independent auditors. The Committee will ensure that there is free and open communication among the Committee, internal and independent auditors and management of the Company. The Committee will prepare the Report of the Audit Committee to be filed in the Company’s annual proxy statement. The Committee is empowered to investigate any matter brought to its attention with full access to all books, records, facilities and personnel of the Company and the power to retain outside counsel or other experts for this purpose. In carrying out its responsibilities, the Committee is not providing any expert or special assurance as to the Company’s financial statements or any professional certification as to the work of the Company’s independent auditors.
The Committee will be annually appointed by the Board of Directors and will consist of at least three independent Directors. Members of the Committee will be considered independent if they have no relationship that may interfere with the exercise of their independence from management and the Company. All Committee members will be financially literate, and at least one member will be a financial expert.
The Audit Committee will:
1. Review and assess the adequacy of this Charter annually and recommend any proposed changes to the Board.
2. Appoint the Company’s independent auditors, which may be subject to shareholders’ approval. The Committee will approve audit fees and provide oversight of the independent auditors. The Committee, together with the Board, shall have the ultimate authority and responsibility to evaluate and, where appropriate, replace the independent auditors. The independent auditors are accountable to the Board and the Audit Committee, as representatives of the Company’s shareholders.
3. Pre-approve all auditing services (including statutory audits and comfort letters in connection with securities offerings) as well as non-audit services (including tax services) to be provided by the independent auditor.
4. Obtain and review an annual report by the independent auditor describing: the firm’s internal quality-control procedures; any material issues raised by the most recent internal quality-control review, or peer review, of the firm or by any inquiry or investigation by governmental or professional authorities, within the preceding five years, and any steps taken to deal with any such issues; and all relationships between the independent auditor and the Company.
5. Discuss the annual audited financial statements and quarterly financial statements with management and the independent auditor, including the Company’s disclosures under “Management’s Discussion and Analysis of Financial Condition and Results of Operations”, and make a recommendation to the Board of Directors as to the inclusion of the annual audited financial statements in the Annual Report on Form 10-K.
6. Discuss with management of the Company and the independent auditors the quarterly earnings release, including financial information and earnings guidance provided to analysts and rating agencies as well as any matters required to be communicated to the Committee by the independent auditors.
7. Meet periodically with management to review the Company’s major business and financial risk exposures and steps management has taken to monitor and control such exposures.
8. Meet separately with (i) management, (ii) the internal auditors and (iii) the independent auditors on a periodic basis.
9. Review with the independent auditor (i) any difficulties the auditor encounters in the course of their audit work, including any restrictions on the scope of the independent auditor’s procedures or on access to requested information, and (ii) any significant disagreements with management.
10. Discuss with the internal auditors and the independent auditors the overall scope and plans for their respective audits including the adequacy of staffing. Discuss results of audits and review significant reports that are issued.
11. Discuss with management, the internal auditors, and the independent auditors the adequacy and effectiveness of the accounting and financial controls. The Committee will review the independent auditors’ management letter and recommendations and management’s response. The Committee will set clear hiring policies for employees or former employees of the independent auditors. The Committee will also review annually Company processes and reports related to conflicts of interest, illegal acts, codes of conduct or ethics, complaints and related items.
12. Perform an annual self-assessment of the Committee’s effectiveness.
While the Committee has the responsibilities and powers set forth above, it is not the duty of the Committee to plan or conduct audits, and the Committee is not responsible for the preparation, content, integrity or objectivity of the Company’s financial statements. These are the responsibility of management and the Company’s independent public accountants. It is not the duty of the Committee to assure compliance with laws and regulations or the Company’s rules, policies and procedures, or to conduct investigations.
ANNUAL MEETING OF STOCKHOLDERS
Monday, April 5, 2004
10:30 a.m. Eastern Time
Hotel du Pont
11^th and Market Streets
Wilmington, Delaware 19801
A. O. SMITH CORPORATION LOGO]

COMPANY #
CONTROL #

THERE ARE THREE WAYS TO VOTE YOUR
PROXY YOUR TELEPHONE OR INTERNET VOTE AUTHORIZES THE NAMED PROXIES TO VOTE YOUR SHARES
IN THE SAME MANNER AS IF YOU MARKED, SIGNED AND RETURNED YOUR PROXY CARD.— COMMON STOCK
This Proxy is Solicited on Behalf of the Board of Directors
The undersigned hereby appoints ROBERT J. O’TOOLE, KENNETH W. KRUEGER and W. DAVID ROMOSER, or any one of them, with full power of substitution, as proxy or proxies of the undersigned to attend the annual meeting of stockholders of A. O. Smith Corporation to be held on April 5, 2004, at 10:30 a.m. Eastern Time, at the Hotel du Pont, 11^th and Market Streets, Wilmington, Delaware, or at any adjournment thereof, and there to vote all shares of Common Stock which the undersigned would be entitled to vote if personally present as specified upon the following matters and in their discretion upon such other matters as may properly come before the meeting.
This proxy when properly executed will be voted in the manner directed herein by the undersigned.
If no direction is made, this proxy will be voted FOR proposals 1 and 2.
PLEASE VOTE BY TELEPHONE --OR THE INTERNET OR MARK, SIGN, DATE
AND RETURN THE PROXY CARD PROMPTLY USING THE ENCLOSED ENVELOPE.
See reverse for voting instructions.
COMPANY #
There are three ways to vote your Proxy
Your telephone or Internet vote authorizes the Named Proxies to vote your shares in the same manner as if you marked, signed and returned your proxy card.
VOTE BY TELEPHONE — TOLL FREE -- 1-800-240-6326 --— 1-800-560-1965 — QUICK ***EASY***— EASY — IMMEDIATE

o
Use any touch-tone telephone to vote your proxy 24 hours a day, 7 days a week, until 11:12:00 a.m.p.m. (CT) on April 4, 2003.
o You will be prompted to enter2, 2004.
Please have your 3-digit Companyproxy card and the last four digits of your Social Security Number and your
7-digit Control Number which are located above.
oavailable. Follow the simple instructions the voice provides you.
VOTE BY INTERNET-- INTERNET —http://www.eproxy.com/aos/ -- — QUICK ***EASY***— EASY — IMMEDIATE

o
Use the Internet to vote your proxy 24 hours a day, 7 days a week, until 12:00 p.m. (CT) on April 4, 2003.
o You will be prompted to enter2, 2004.
Please have your 3-digit Companyproxy card and the last four digits of your Social Security Number and your
7-digit Control Number which are located aboveavailable. Follow the simple instructions to obtain your records and create an electronic ballot.
VOTE BY MAIL
Mark, sign and date your proxy card and return it in the postage-paid envelope we'vewe’ve provided or return it to A. O. SMITH CORPORATION, c/o Shareowner Services(SM)Services^SM, P.O. Box 64873, St. Paul, MN 55164-0873.

IF YOU VOTE BY TELEPHONE OR INTERNET, PLEASE DO NOT MAIL YOUR PROXY CARD

\/
If you vote by Telephone or Internet, please do not mail your Proxy Card
¨ Please detach here \/

¨
A. O. SMITH CORPORATION 20032004 ANNUAL MEETING
PROXY -— COMMON STOCK
This proxy when properly executed will be voted in the manner directed herein by the undersigned. If no direction is made, this proxy will be voted FOR proposals 1 and 2.
1. Election of directors: 01 William F. Buehler 02 Kathleen J. Hempel /__/ ¨ Vote FOR /__/all nominees
(except as marked) ¨ Vote WITHHELD all nominees from all nominees
(except as
marked)

2. Proposal to approve the ratification of Ernst & Young LLP as the independent /__/ FOR /__/ AGAINST /__/ ABSTAIN
auditors of the corporation:

DIRECTORS RECOMMEND A VOTE ¨ FOR ¨ AGAINST ¨ ABSTAIN
Directors recommend a vote FOR. Date
---------------------------------
Address change? Mark Box /__/¨ Indicate changes below:

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Signature(s) in Box
Please sign exactly as your name appears hereon. When shares are held by joint tenants, both should sign. When signing as attorney, executor, administrator, trustee or guardian, please give full title as such. If a corporation, please sign in full corporate name by President or other authorized officer. If a partnership, please sign in partnership name by authorized person.
ANNUAL MEETING OF STOCKHOLDERS
Monday, April 5, 2004
10:30 a.m. Eastern Time
Hotel du Pont
11^th and Market Streets
Wilmington, Delaware 19801
A. O. SMITH CORPORATION

ANNUAL MEETING OF STOCKHOLDERS

MONDAY, APRIL 7, 2003
10:30 A.M. EASTERN TIME

HOTEL DU PONT
11TH AND MARKET STREETS
WILMINGTON, DELAWARE 19801

A. O. SMITH CORPORATION

PROXY -— CLASS A COMMON STOCK

THIS PROXY IS SOLICITED ON BEHALF OF THE BOARD OF DIRECTORS

This Proxy is Solicited on Behalf of the Board of Directors
The undersigned hereby appoints ROBERT J. O'TOOLE,O’TOOLE, KENNETH W. KRUEGER and W. DAVID ROMOSER, or any one of them, with full power of substitution, as proxy or proxies of the undersigned to attend the annual meeting of stockholders of A. O. Smith Corporation to be held on April 7, 2003,5, 2004, at 10:30 a.m. Eastern Time, at the Hotel du Pont, 11th11^th and Market Streets, Wilmington, Delaware, or at any adjournment thereof, and there to vote all shares of Class A Common Stock which the undersigned would be entitled to vote if personally present as specified upon the following matters and in their discretion upon such other matters as may properly come before the meeting.

THIS PROXY WHEN PROPERLY EXECUTED WILL BE VOTED IN THE MANNER DIRECTED
HEREIN BY THE UNDERSIGNED.
IF NO DIRECTION IS MADE, THIS PROXY WILL BE VOTED
This proxy when properly executed will be voted in the manner directed herein by the undersigned.
If no direction is made, this proxy will be voted FOR PROPOSALSproposals 1 ANDand 2.
PLEASE VOTE BY TELEPHONE OR THE INTERNET OR MARK, SIGN, DATE
AND RETURN THE PROXY CARD PROMPTLY USING THE ENCLOSED ENVELOPE.
See reverse for voting instructions.
COMPANY # CONTROL #

THERE ARE THREE WAYS TO VOTE YOUR PROXY

YOUR TELEPHONE OR INTERNET VOTE AUTHORIZES THE NAMED PROXIES TO VOTE YOUR SHARES
IN THE SAME MANNER AS IF YOU MARKED, SIGNED AND RETURNED YOUR PROXY CARD.

There are three ways to vote your Proxy
Your telephone or Internet vote authorizes the Named Proxies to vote your shares in the same manner as if you marked, signed and returned your proxy card.
VOTE BY TELEPHONE--TELEPHONE — TOLL FREE-- 1-800-240-6326--FREE — 1-800-560-1965 — QUICK ***EASY***— EASY — IMMEDIATE

IF YOU VOTE BY TELEPHONE OR INTERNET, PLEASE DO NOT MAIL YOUR PROXY CARD

\/
If you vote by Telephone or Internet, please do not mail your Proxy Card
¨ Please detach here \/

¨
A. O. SMITH CORPORATION 20032004 ANNUAL MEETING
PROXY -— CLASS A COMMON STOCK
This proxy when properly executed will be voted in the manner directed herein by the undersigned. If no direction is made, this proxy will be voted FOR proposals 1 and 2.
1. Election of directors: 01 Ronald D. Brown 0304 Bruce M. Smith /__/ Vote FOR /__/ Vote WITHHELD
02 RobertDennis J. O'Toole 04Martin 05 Mark D. Smith
03 Robert J. O’Toole 06 Gene C. Wulf ¨ Vote FOR ¨ Vote WITHHELD
all nominees from all nominees
(except as marked)

(INSTRUCTIONS: TO WITHHOLD AUTHORITY TO VOTE FOR ANY INDICATED NOMINEE, WRITE
THE NUMBER(S) OF THE NOMINEE(S) IN THE BOX PROVIDED TO THE RIGHT.
(Instructions: To withhold authority to vote for any indicated nominee,
write the number(s) of the nominee(s) in the box provided to the right.)
(Instructions: To withhold authority to vote for any indicated nominee, write the number(s) of the nominee(s) in the box provided to the right.) --------------------------------

2. Proposal to approve the ratification of Ernst & Young LLP as the independent /__/ FOR /__/ AGAINST /__/ ABSTAIN
auditors of the corporation:

DIRECTORS RECOMMEND A VOTE ¨ FOR ¨ AGAINST ¨ ABSTAIN
Directors recommend a vote FOR. Date
---------------------------------
Address change? Mark Box /__/¨ Indicate changes below:

-------------------------------------------------

ANNUAL MEETING OF STOCKHOLDERS

MONDAY, APRIL 7, 2003
10:30 A.M. EASTERN TIME

HOTEL DU PONT
11TH AND MARKET STREETS
WILMINGTON, DELAWARE 19801
Voting Instructions to the Marshall & Ilsley Trust Company N.A.
Trustee of the A. O. SMITH CORPORATION
PROXY - CLASS A COMMON STOCK

THIS PROXY IS SOLICITED ON BEHALF OF THE BOARD OF DIRECTORS

Smith Corporation
Master Trust
This Voting Instruction is Solicited on Behalf of the Trustee
The undersigned hereby appoints ROBERT J. O'TOOLE, KENNETH W. KRUEGER and W.
DAVID ROMOSER, or any one of them, with full power of substitution, as proxy or
proxiesdirects the Marshall & Ilsley Trust Company N.A., Trustee of the undersignedA. O. Smith Corporation Master Trust, to attendvote the annual meeting of stockholdersshares of A. O. Smith Corporation Common Stock allocated to the undersigned’s account in said Trust at the Annual Meeting to be held on April 7, 2003, at 10:30 a.m. Eastern Time, at5, 2004, and all adjournments.
Voting Instructions to the Hotel du Pont, 11thTrustee: If no choices are marked, the Trustee will vote FOR proposals 1 and Market Streets, Wilmington, Delaware, or at any
adjournment thereof, and there to vote all shares of Class A Common Stock which
the undersigned would be entitled to vote if personally present as specified
upon the following matters and in their discretion upon such other matters as
may properly come before the meeting.

THIS PROXY WHEN PROPERLY EXECUTED WILL BE VOTED IN THE MANNER DIRECTED
HEREIN BY THE UNDERSIGNED.
IF NO DIRECTION IS MADE, THIS PROXY WILL BE VOTED FOR PROPOSALS 1 AND 2.
PLEASE VOTE BY TELEPHONE OR THE INTERNET OR MARK, SIGN, DATE
AND RETURN THE PROXY CARD PROMPTLY USING THE ENCLOSED ENVELOPE.
See reverse for voting instructions.
COMPANY #
CONTROL #

THERE ARE THREE WAYS TO VOTE YOUR PROXY

YOUR TELEPHONE OR INTERNET VOTE AUTHORIZES THE NAMED PROXIES TO VOTE YOUR SHARES
IN THE SAME MANNER AS IF YOU MARKED, SIGNED AND RETURNED YOUR PROXY CARD.

IF YOU VOTE BY TELEPHONE OR INTERNET, PLEASE DO NOT MAIL YOUR PROXY CARD

\/
If you vote by Telephone or Internet, please do not mail your Proxy Card
¨ Please detach here \/

¨
A. O. SMITH CORPORATION 20032004 ANNUAL MEETING
VOTING INSTRUCTIONS
Voting Instructions to the Trustee: If no choices are marked below, the Trustee will vote FOR proposals 1 and 2.
1. Election of directors: 01 William F. Buehler 02 Kathleen J. Hempel /__/ ¨ Vote FOR /__/all nominees
(except as marked) ¨ Vote WITHHELD from
all nominees from all nominees
(except as
marked)

2. Proposal to approve the ratification of Ernst & Young LLP as the independent /__/ FOR /__/ AGAINST /__/ ABSTAIN
auditors of the corporation:

DIRECTORS RECOMMEND A VOTE ¨ FOR ¨ AGAINST ¨ ABSTAIN
Directors recommend a vote FOR. Date
---------------------------------
Address change? Mark Box /__/¨ Indicate changes below:

-------------------------------------------------

Signature(s) in Box
Please sign exactly as your name appears on this proxy. When signing as attorney, executor, administrator, trustee or guardian, please give full title as such.

A. O. SMITH CORPORATION

ANNUAL MEETING OF STOCKHOLDERS

MONDAY, APRIL 7, 2003
10:30 A.M. EASTERN TIME

HOTEL DU PONT
11TH AND MARKET STREETS
WILMINGTON, DELAWARE 19801

A. O. SMITH CORPORATION

VOTING INSTRUCTIONS TO THE MARSHALL & ILSLEY TRUST COMPANY N.A.
TRUSTEE OF THE A. O. SMITH PROFIT
SHARING RETIREMENT PLAN

THIS VOTING INSTRUCTION IS SOLICITED ON BEHALF OF THE TRUSTEE

The undersigned hereby directs the Marshall & Ilsley Trust Company N.A., Trustee
of the A. O. Smith Profit Sharing Retirement Plan, to vote the shares of A. O.
Smith Corporation Common Stock allocated to the undersigned's account in said
Trust at the Annual Meeting to be held on April 7, 2003, and all adjournments.

VOTING INSTRUCTIONS TO THE TRUSTEE: IF NO CHOICES ARE MARKED, THE TRUSTEE WILL
VOTE FOR PROPOSALS 1 AND 2.

PLEASE VOTE BY TELEPHONE OR THE INTERNET OR MARK, SIGN, DATE
AND RETURN THE PROXY CARD PROMPTLY USING THE ENCLOSED ENVELOPE.

See reverse for voting instructions.


PRINCIPAL ~~STOCKHOLDERS......................................~~ STOCKHOLDERS		4
ELECTION OF ~~DIRECTORS....................................... 5 BOARD COMMITTEES............................................~~ DIRECTORS		6 ~~DIRECTOR COMPENSATION....................................... 7 SECURITY OWNERSHIP~~
GOVERNANCE OF ~~DIRECTORS AND MANAGEMENT..............~~ THE COMPANY		7
The Board of Directors		7
Board Committees		8
Director Compensation		9
STOCK OWNERSHIP		10
Security Ownership of Directors and Management		10
Compliance with Section 16(a) of the Securities Exchange Act		11
EXECUTIVE ~~COMPENSATION...................................... 8~~ COMPENSATION		12
COMPENSATION COMMITTEE INTERLOCKS AND INSIDER ~~PARTICIPATION............................................. 11 BOARD~~ PARTICIPATION		15
PERSONNEL AND COMPENSATION COMMITTEE REPORT ~~ON EXECUTIVE COMPENSATION.................................... 11~~		15
PERFORMANCE ~~GRAPH........................................... 13 COMPLIANCE WITH SECTION 16(a) OF THE SECURITIES EXCHANGE ACT....................................................... 14~~ GRAPH		17
REPORT OF THE AUDIT ~~COMMITTEE............................... 14~~ COMMITTEE		18
APPOINTMENT OF INDEPENDENT ~~AUDITORS......................... 15~~ AUDITORS		18
REPORT OF THE NOMINATING AND GOVERNANCE COMMITTEE		19
BOARD INFORMATION AND STOCKHOLDER COMMUNICATIONS		19
DATE FOR STOCKHOLDER ~~PROPOSALS.............................. 15~~ PROPOSALS		20
EXHIBIT A — AUDIT COMMITTEE CHARTER		A-1


Title of Class	Name and Address of Beneficial Owner	Amount and Nature of Beneficial Ownership		Percent of Class
Class A Common Stock	Smith Investment Company* P.O. Box 245011 Milwaukee, WI 53224-9511⁽¹⁾	8,067,252		94.93	%

Common Stock	Smith Investment Company P.O. Box 245011 Milwaukee, WI 53224-9511⁽¹⁾	1,559,076	⁽²⁾	7.51	%⁽²⁾

Common Stock	Cramer Rosenthal McGlynn, LLC 520 Madison Avenue New York, NY 10022	1,208,483	⁽³⁾	5.82	%

Common Stock	FMR Corp., Edward C. Johnson 3d and Abigail P. Johnson 82 Devonshire Street Boston, MA 02109	1,492,090	⁽⁴⁾	7.19	%

Common Stock	Mac-Per-Wolf Company 310 S. Michigan Ave., Suite 2600 Chicago, IL 60604	1,343,300	⁽⁵⁾	6.47	%

Common Stock	T. Rowe Price Associates Inc. 100 East Pratt Street Baltimore, MD 21202	2,474,250	⁽⁶⁾	11.93	%


Name	Type of Stock** ~~BENEFICIAL OWNERSHIP(1) OF CLASS ---- --------------- ----------------------- --------~~ ~~Glen R. Bomberger Common Stock 255,295 shares 1.25%~~	Amount and Nature of Beneficial Ownership(1)		Percent of Class
Ronald D. Brown	Common Stock ~~1,570~~	2,124 shares		*
William F. Buehler	Common Stock ~~4,137~~	4,691 shares		*
Donald M. Heinrich	Common Stock ~~145,885 shares(2)~~	176,865 shares	⁽²⁾	*
Kathleen J. Hempel	Common Stock ~~3,801~~	4,355 shares		*
Kenneth W. Krueger	Common Stock ~~129,100 shares(2)~~	163,500 shares	⁽²⁾	*
Dennis J. Martin	Common Stock	111 shares		*
Ronald E. Massa	Common Stock 192,181 shares(2) *	223,581 shares	⁽²⁾	1.08	%
Robert J. ~~O'Toole~~ O’Toole	Common Stock ~~1,215,320 shares(2) 5.94% Dr. Agnar Pytte Common Stock 7,569~~	1,342,020 shares *	⁽²⁾	6.46	%
W. David Romoser	Common Stock ~~179,641 shares(2)~~	200,491 shares	⁽²⁾	*
Bruce M. ~~Smith(3)~~ Smith⁽³⁾	Common Stock ~~2,649~~	3,203 shares		*
Mark D. ~~Smith(3)~~ Smith⁽³⁾	Common Stock ~~905~~	1,459 shares		*
Gene C. Wulf	Common Stock	402 shares		*
All 1920 Directors, Nominees and Executive Officers as a Group	Common Stock	2,741,481 shares	⁽²⁾	13.19	%