SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549

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

                                    FORM 8-K

                                 CURRENT REPORT


                       Pursuant to Section 13 or 15(d) of
                       the Securities Exchange Act of 1934

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


                                 Date of Report
                                (Date of earliest
                         event reported): April 15, 2003


                             A. O. Smith Corporation
                             -----------------------

             (Exact name of registrant as specified in its charter)


    Delaware                          1-475                      39-0619790
- ----------------                    ---------                 -----------------
 (State or other                (Commission File                (IRS Employer
 jurisdiction of                     Number)                 Identification No.)
 incorporation)


                P.O. Box 245008, Milwaukee, Wisconsin 53224-9508
           ----------------------------------------------------------
          (Address of principal executive offices, including zip code)


                                 (414) 359-4000
                         (Registrant's telephone number)


                                       1

Item 7. Financial Statements and Exhibits (a) Not applicable. (b) Not applicable. (c) Exhibits. The following exhibit is being filed herewith: (99) Press Release of A. O. Smith Corporation, dated April 15, 2003. Item 9. Regulation FD Disclosures. (Information is being provided under Item 12.) On April 15, 2003, A. O. Smith Corporation ("the Company") issued a press release announcing the Company's results for the quarter ended March 31, 2003 and its earnings outlook for 2003. A copy of the Company's press release is attached as Exhibit 99 to this Current Report on Form 8-K (this "Current Report") and is incorporated by reference herein. SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. A. O. Smith Corporation Date: April 15, 2003 By: /s/ Kenneth W. Krueger Kenneth W. Krueger Senior Vice President and Chief Financial Officer

A. O. Smith Corporation Exhibit Index to Current Report on Form 8-K Dated April 15, 2003 Exhibit Number Description - ------ ----------- (99) Press Release of A. O. Smith Corporation dated April 15, 2003.

                                                          A. O. SMITH CORPORATON
NEWS RELEASE                                    For further information contact:
- --------------------------------------------------------------------------------
MEDIA INQUIRES:       ANALYST/INVESTOR INQUIRES:          A.O. Smith Corporation
Edward J. O'Connor    Craig Watson                               P.O. Box 245008
414-359-4100          414-359-4009                     Milwaukee, WI  53224-9508
                                                                    414-359-4000
                                                                      NYSE:  AOS

     Milwaukee, Wis.--First quarter 2003 net earnings for A. O. Smith
Corporation (AOS-NYSE) increased 13 percent to $13.7 million compared with the
$12.1 million earned during the same period in 2002.

     While net earnings improved 13 percent, the $.46 per share earnings in the
first quarter fell below last year's $.50 per share. This difference is due to
the impact of the 4.8 million shares issued in the May 2002 stock offering. Both
earnings and earnings per share were at the high end of the company's forecast.

     Revenues for the quarter ended March 31 increased four percent to $387.9
million compared with 2002 first quarter revenues of $371.9 million.

     "Earnings were positively influenced by improved operating performance in
our Electrical Products business as well as lower interest expense," Robert J.
O'Toole, chairman and chief executive officer, pointed out.

Electrical Products

     Electrical Products reported first quarter sales of $213.1 million, nearly
nine percent higher than first quarter sales in 2002. The sales increase was the
result of the July 2002 acquisition of Athens Products, higher sales in the pump
and after-market businesses, as well as additional sales from the company's
recently acquired Chinese motor operations. Sales to the heating, ventilating,
and air conditioning (HVAC) market were flat.

                                     -more-

a. o. smith first quarter earnings add l The higher volumes and improved operating expenses contributed to first quarter operating profit of $17.7 million, a 16 percent increase compared with the first quarter of 2002. Electrical Products' cost reduction and product repositioning initiatives continue, and during the quarter, the company closed its Monticello, Ind., assembly facility. Production from that plant was transferred to company operations in Mexico. Water Systems Water Systems' first quarter sales of $174.8 million were essentially flat compared with the same period in 2002. A price increase to offset higher steel costs took effect in the last half of the quarter. This net cost increase coupled with lower unit sales, caused first quarter operating profit to decline to $12.0 million from the $13.6 million earned last year. On July 1, new regulatory standards go into effect that impact gas-fired residential water heaters, and Water Systems remains on schedule with plans to introduce new products that comply with these standards. The new regulations mandate that gas residential water heaters resist accidentally igniting flammable vapors that may be caused by spilled gasoline or other flammable materials ill-advisedly taken into the home. The standards will be phased in over a two-year period, beginning with 30, 40, and 50-gallon products this year. Company discusses outlook "Our customers remain very cautious due to weakening consumer demand and the general uncertainty in the U.S. economy," O'Toole commented. "In spite of these concerns, we remain comfortable with our 2003 forecast of earnings in the range of $2.05 and $2.25 per share." "As we have stated before, lower pension income and cost increases in areas such as medical benefits, liability insurance, and steel will impact us during the full year, while the benefits of repositioning at Electrical Products, the integration of State Industries, and the introduction of new water heater products are weighted to the last half of the year. -more-

a. o. smith first quarter earnings add 2 Consequently, we expect year-over-year comparisons to improve in the last half of the year. For the second quarter of 2003, we estimate net income will be modestly better than last year, with earnings per share in a range of $.64 to $.68 per share." A. O. Smith will broadcast a live conference call beginning at 1:30 p.m. (Eastern Time) today. The call can be heard on the company's web site, www.aosmith.com. An audio replay of the call will be available on the company's web site after the live event. Forward-looking statements This release contains statements that we believe are "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking statements generally can be identified by the use of words such as "may," "will," "expect," "intend," "estimate," "anticipate," "believe," "continue," or words of similar meaning. These forward-looking statements are subject to risks and uncertainties that could cause actual results to differ materially from those anticipated as of the date of this release. Factors that could cause such a variance include the following: instability in the company's electric motor and water products markets; inability to generate the synergistic cost savings from the acquisition of State Industries; the inability to implement cost-reduction programs; adverse changes in general economic conditions; significant increases in raw material prices; a failure to comply with new flammable vapor prevention standards in the residential gas water heater industry; competitive pressures on the company's businesses; and the potential that assumptions on which the company based its expectations are inaccurate or will prove to be incorrect. Forward-looking statements included in this press release are made only as of the date of this release, and the company is under no obligation to update these statements to reflect subsequent events or circumstances. All subsequent written and oral forward-looking statements attributable to the company, or persons acting on its behalf, are qualified in their entirety by these cautionary statements. A. O. Smith Corporation, with headquarters in Milwaukee, Wis., is one of North -more-

a. o. smith first quarter earnings add 3 America's largest manufacturers of electric motors, with a comprehensive line of hermetic motors, fractional horsepower alternating current (AC) and direct current (DC) motors, and integral horsepower motors, as well as one of North America's largest manufacturers of residential and commercial water heating equipment. A. O. Smith Corporation has facilities in the United States, Mexico, Canada, England, Ireland, Hungary, the Netherlands, and China and employs approximately 17,000 people.

A. O. SMITH CORPORATION AND SUBSIDIARIES (condensed consolidated financial statements - $000 omitted except per share data) Statement of Earnings Three Months ended March 31 ------------------------------------- 2003 2002 --------------- --------------- Electrical Products $ 213,091 $ 196,234 Water Systems 174,821 175,693 --------------- --------------- Net sales 387,912 371,927 Cost of products sold 309,719 295,026 --------------- --------------- Gross profit 78,193 76,901 Selling, general and administrative 54,023 53,204 Interest expense 2,908 4,177 Other expense 336 870 --------------- --------------- 20,926 18,650 Tax provision 7,220 6,528 --------------- --------------- Net Earnings $ 13,706 $ 12,122 =============== =============== Net Earnings Per Share of Common Stock (Diluted) $ 0.46 $ 0.50 =============== =============== Average Common Shares Outstanding (000's omitted) 29,522 24,317

A. O. SMITH CORPORATION Balance Sheet March 31 December 31 2003 2002 ------------------ -------------------- ASSETS: Cash and cash equivalents $ 27,501 $ 32,847 Receivables 246,129 215,481 Inventories 217,689 200,351 Deferred income taxes 26,008 26,714 Other current assets 18,289 12,858 --------------- --------------- Total Current Assets 535,616 488,251 Net property, plant and equipment 355,107 362,730 Goodwill and other intangibles 309,084 309,151 Other assets 65,840 64,725 --------------- --------------- Total Assets $ 1,265,647 $ 1,224,857 =============== =============== LIABILITIES AND STOCKHOLDERS' EQUITY: Trade payables $ 150,870 $ 131,423 Accrued payroll and benefits 35,715 38,745 Product warranty 19,405 19,478 Income taxes 3,764 1,786 Long-term debt due within one year 11,671 11,671 Other current liabilities 56,731 58,576 --------------- --------------- Total Current Liabilities 278,156 261,679 Long-term debt 253,438 239,084 Other liabilities 113,192 114,694 Pension liability 88,323 90,836 Deferred income taxes 10,496 7,512 Stockholders' equity 522,042 511,052 --------------- --------------- Total Liabilities and Stockholders' Equity $ 1,265,647 $ 1,224,857 =============== ===============

A. O. SMITH CORPORATION STATEMENT OF CASH FLOWS Three Months ended March 31 -------------------------------------- 2003 2002 --------------- --------------- Operating Activities Continuing - ---------- Net earnings $ 13,706 $ 12,122 Adjustments to reconcile net earnings to net cash provided by operating activities: Depreciation & amortization 12,789 12,297 Net change in current assets and liabilities (36,024) 3,024 Net change in noncurrent assets and liabilities (143) (5,516) Other (1,007) 927 --------------- --------------- Cash Provided by (Used in) Operating Activities (10,679) 22,854 --------------- --------------- Investing Activities Capital expenditures (5,423) (7,080) Acquisitions - (2,050) --------------- --------------- Cash Used in Investing Activities (5,423) (9,130) --------------- --------------- Financing Activities Debt incurred 16,497 - Debt retired (2,143) (14,798) Other stock transactions - 815 Dividends paid (4,059) (3,094) --------------- --------------- Cash Provided by (Used in) Financing Activities 10,295 (17,077) Discontinued - ------------ Cash Provided by Discontinued Operations 461 4,445 --------------- --------------- Net increase / (decrease) in cash and cash equivalents (5,346) 1,092 Cash and cash equivalents - beginning of period 32,847 20,759 --------------- --------------- Cash and Cash Equivalents - End of Period $ 27,501 $ 21,851 =============== ===============