SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                                    FORM 10-Q

[X]   QUARTERLY  REPORT  PURSUANT  TO  SECTION  13 OR 15(d)  OF  THE  SECURITIES
      EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2000

                                       OR

[ ]   TRANSITION  REPORT  PURSUANT  TO  SECTION  13 OR 15(d) OF  THE  SECURITIES
      EXCHANGE ACT OF 1934
      For the transition period from ________________ to _______________

Commission File Number 1-475


                             A.O. Smith Corporation
                                     [Logo]


                Delaware                                 39-0619790
       (State of Incorporation)                  (IRS Employer ID Number)

                P. O. Box 245008, Milwaukee, Wisconsin 53224-9508
                            Telephone: (414) 359-4000


Indicate by check mark whether the registrant (1) has filed all reports required
to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during
the preceding 12 months and (2) has been subject to such filing requirements for
the past 90 days. Yes X No ___


     Class A Common Stock Outstanding as of March 31, 2000 8,690,125 shares

        Common Stock Outstanding as of March 31, 2000 14,721,810 shares

                              Exhibit Index Page 14



                                       1



                                      Index


                             A. O. Smith Corporation



Part I.  Financial Information

Item 1.  Financial Statements (Unaudited)

   Condensed Consolidated Statements of Earnings and Retained Earnings
   - Three months ended March 31, 2000 and 1999                                3

   Condensed Consolidated Balance Sheet
   - March 31, 2000 and December 31, 1999                                      4

   Condensed Consolidated Statement of Cash Flows
   - Three months ended March 31, 2000 and 1999                                5

   Notes to Condensed Consolidated Financial Statements
   - March 31, 2000                                                          6-8

Item 2.  Management's Discussion and Analysis of Financial Condition
         and Results of Operations                                          9-11

Item 3.  Quantitative and Qualitative Disclosure of Market Risk               11

Part II. Other Information

Item 1.  Legal Proceedings                                                    12

Item 4.  Submission of Matters to a Vote of Security Holders                  12

Item 6.  Exhibits and Reports on Form 8-K                                     12

Signatures                                                                    13

Index to Exhibits                                                             14



                                       2



PART I--FINANCIAL INFORMATION
ITEM 1--FINANCIAL STATEMENTS

                             A. O. SMITH CORPORATION
                  CONDENSED CONSOLIDATED STATEMENT OF EARNINGS
                              AND RETAINED EARNINGS
                   Three Months ended March 31, 2000 and 1999
                     (000 omitted except for per share data)
                                   (unaudited)

                                                        Three Months Ended
                                                             March 31
                                                  ------------------------------
                                                     2000                1999
                                                  ----------          ----------
Continuing Operations
  Electric Motor Technologies                     $ 247,876           $ 147,875
  Water Systems Technologies                         87,167              81,988
                                                  ----------          ----------
  NET SALES                                         335,043             229,863
  Cost of products sold                             267,648             183,936
                                                  ----------          ----------
  Gross profit                                       67,395              45,927
  Selling, general and
    administrative expenses                          35,652              23,752
  Interest expense                                    5,431               1,978
  Interest income                                       (97)               (324)
  Other expense - net                                 4,030               1,780
                                                  ----------          ----------
                                                     22,379              18,741
  Provision for income taxes                          8,224               6,789
                                                  ----------          ----------
Earnings from Continuing Operations                  14,155              11,952

Discontinued Operations (note 4)
  Earnings (loss) from operations
    less related income tax (benefit)
    2000 - $297, 1999 - ($313)                          456                (550)
                                                  ----------          ----------

Net Earnings                                         14,611              11,402
                                                  ==========          ==========

Retained Earnings
Balance at beginning of period                      531,204             499,954
Net Earnings                                         14,611              11,402
Cash dividends on common shares                      (2,807)             (2,795)
                                                  ----------          ----------

Balance at End of Period                          $ 543,008           $ 508,561
                                                  ==========          ==========

Basic Earnings (Loss) per Common
  Share (note 8)
    Continuing Operations                             $0.61               $0.51
    Discontinued Operations                            0.02               (0.02)
                                                  ----------          ----------
    Net Earnings                                      $0.63               $0.49
                                                  ==========          ==========

Diluted Earnings (Loss) per Common
  Share (note 8)
    Continuing Operations                             $0.60               $0.50
    Discontinued Operations                            0.02               (0.02)
                                                  ----------          ----------
    Net Earnings                                      $0.62               $0.48
                                                  ==========          ==========

Dividends per Common Share                            $0.12               $0.12


See accompanying notes to unaudited condensed consolidated financial statements.



                                        3



PART I--FINANCIAL INFORMATION
ITEM 1--FINANCIAL STATEMENTS

                         A. O. SMITH CORPORATION
                 CONDENSED CONSOLIDATED BALANCE SHEETS
                  March 31, 2000 and December 31, 1999
                             (000 omitted)

                                                 (unaudited)
                                                  March 31,         December 31,
                                                    2000              1999
                                                 -----------       ------------
Assets
  Current Assets
  Cash and cash equivalents (note 2)             $    5,132         $    14,761
  Receivables                                       224,351             183,442
  Inventories (note 5)                              170,002             163,443
  Deferred income taxes                              11,047              11,323
  Other current assets                                6,550               5,253
  Net current assets - discontinued
    operations (note 4)                              16,116              10,405
                                                 -----------        ------------
  Total Current Assets                              433,198             388,627

  Property, plant and equipment                     527,826             518,741
  Less accumulated depreciation                     243,610             235,248
                                                 -----------        ------------
  Net property, plant and equipment                 284,216             283,493
  Goodwill and other intangibles                    249,771             251,085
  Other assets                                       96,200              88,990
  Net long-term assets - discontinued
    operations (note 4)                              50,509              51,791
                                                 -----------        ------------
  Total Assets                                   $1,113,894         $ 1,063,986
                                                 ===========        ============

Liabilities
  Current Liabilities
  Notes payable                                  $      644         $         -
  Trade payables                                    101,346              81,221
  Accrued payroll and benefits                       28,427              32,272
  Accrued liabilities                                28,849              27,301
  Product warranty                                   11,020              10,847
  Income taxes                                        8,992               7,170
  Long-term debt due within one year                  9,629               9,629
                                                 -----------        ------------
  Total Current Liabilities                         188,907             168,440

  Long-term debt (note 6)                           364,785             351,251
  Other liabilities                                  66,044              64,536
  Deferred income taxes                              51,966              48,675
                                                 -----------        ------------

  Total Liabilities                                 671,702             632,902

Stockholders' Equity
  Class A common stock, $5 par value:
    authorized 14,000,000 shares;
    issued 8,722,720                                 43,614              43,615
  Common stock, $1 par value: authorized
    60,000,000 shares; issued  23,826,642            23,827              23,826
  Capital in excess of par value                     53,212              53,026
  Retained earnings (note 6)                        543,008             531,204
  Accumulated other comprehensive loss
    (note 7)                                         (4,228)             (3,238)
  Treasury stock at cost                           (217,241)           (217,349)
                                                 -----------        ------------

  Total Stockholders' Equity                        442,192             431,084
                                                 -----------        ------------
Total Liabilities and Stockholders' Equity       $1,113,894          $1,063,986
                                                 ===========        ============


See accompanying notes to unaudited condensed consolidated financial statements



                                        4



PART I--FINANCIAL INFORMATION
ITEM 1--FINANCIAL STATEMENTS

                             A. O. SMITH CORPORATION
                 CONDENSED CONSOLIDATED STATEMENT OF CASH FLOWS
                   Three Months Ended March 31, 2000 and 1999
                                  (000 omitted)
                                   (unaudited)

                                                      Three Months Ended
                                                           March 31
                                                 ----------------------------
                                                    2000              1999
                                                 ----------        ----------
Operating Activities
Continuing
  Earnings from continuing operations            $  14,155         $  11,952
  Adjustments to reconcile net earnings
    to net cash provided by (used in)
    operating activities:
      Depreciation                                   9,206             6,544
      Amortization                                   2,114             1,302
      Net change in current assets and
        liabilities                                (25,677)          (13,860)
      Net change in other noncurrent
        assets and liabilities                      (3,933)           (5,661)
      Other                                            414               124
                                                 ----------        ----------

Cash Provided by (Used in) Operating
  Activities                                        (3,721)              401

Investing Activities
  Capital expenditures                             (11,660)           (8,657)
  Other                                               (360)             (369)
                                                 ----------        ----------

Cash Used in Investing Activities                  (12,020)           (9,026)
                                                 ----------        ----------

Cash Used in Operating and Investing
  Activities                                       (15,741)           (8,625)

Discontinued
Cash Used in Discontinued Operations                (5,340)           (6,381)


Financing Activities
  Debt incurred                                     14,178               332
  Purchase of treasury stock                             -            (2,691)
  Net proceeds from common stock and
    option activity                                     38                42
  Tax benefit from exercise of stock
    options                                             43                 4
  Dividends paid                                    (2,807)           (2,795)
                                                 ----------        ----------

Cash Provided by (Used in) Financing
  Activities                                        11,452            (5,108)
                                                 ----------        ----------

    Net decrease in cash and cash
      equivalents                                   (9,629)          (20,114)
    Cash and cash equivalents-beginning
      of period (note 2)                            14,761            37,666
                                                 ----------        ----------

Cash and Cash Equivalents - End of Period        $   5,132         $  17,552
                                                 ==========        ==========


See accompanying notes to unaudited condensed consolidated financial statements.


                                        5



PART I - FINANCIAL INFORMATION
ITEM 1 - FINANCIAL STATEMENTS

                             A. O. SMITH CORPORATION
              NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                                 March 31, 2000
                                   (unaudited)

1.   Basis of Presentation
     The condensed  consolidated financial statements presented herein are based
     on interim  figures and are subject to audit. In the opinion of management,
     all adjustments  consisting of normal accruals  considered  necessary for a
     fair  presentation  of the results of operations and of financial  position
     have been made. The results of operations for the three-month  period ended
     March 31, 2000 are not necessarily  indicative of the results  expected for
     the full year. The condensed  consolidated balance sheet as of December 31,
     1999 is derived from the audited financial  statements but does not include
     all  disclosures  required by  generally  accepted  accounting  principles.
     Certain  prior year amounts have been  reclassified  to conform to the 2000
     presentation.

2.   Statement of Cash Flows
     For purposes of the  Consolidated  Statement  of Cash Flows,  cash and cash
     equivalents   include  short-term   investments  held  primarily  for  cash
     management purposes.  These investments normally mature within three months
     from the date of acquisition.

3.   Acquisition
     On August 2, 1999,  the company  acquired  the assets of  MagneTek,  Inc.'s
     (MagneTek)  domestic  electric  motor business and six wholly owned foreign
     subsidiaries  for $244.6  million.  The purchase price was allocated to the
     assets acquired and the liabilities assumed based upon current estimates of
     their  respective fair values at the date of  acquisition.  These estimates
     may be revised at a later date.

     In  connection  with  the  MagneTek   acquisition,   the  company  recorded
     additional  purchase  liabilities of $19.4 million which included  employee
     severance and  relocation,  as well as certain  facility exit costs.  Costs
     incurred and charged  against the purchase  liability  totaled $0.8 million
     for the three-month  period ended March 31, 2000.  Total costs incurred and
     charged against the liability from August 2, 1999 to March 31, 2000 totaled
     $1.8 million.

4.    Discontinued Operations
     In the first quarter,  the company decided to divest its fiberglass  piping
     and  liquid  and dry  bulk  storage  tank  businesses.  Net  sales of these
     businesses were $28.7 and $27.5 million for the  three-month  periods ended
     March 31, 2000 and 1999, respectively.

     The operating  results of the  discontinued  businesses  have been reported
     separately  as  discontinued   operations  in  the  accompanying  financial
     statements.  Certain  expenses  have  been  allocated  to the  discontinued
     operations,  including  interest expense,  which was



                                       6



     allocated based on the ratio of net assets of the  discontinued  businesses
     to the total consolidated capital of the company.

5.   Inventories (000 omitted)
                                                March 31, 2000     Dec. 31, 1999
                                                --------------     -------------
     Finished products                             $ 105,999        $   99,335
     Work in process                                  39,892            40,197
     Raw materials                                    42,272            41,997
     Supplies                                          1,247             1,322
                                                    --------         ---------
                                                     189,410           182,851
     Allowance to state inventories
        at LIFO cost                                  19,408            19,408
                                                    --------         ---------
                                                   $ 170,002        $  163,443
                                                    ========         =========

6.   Long-Term Debt
     The company's  credit  agreement and term notes contain certain  conditions
     and provisions which restrict the company's payment of dividends. Under the
     most restrictive of these  provisions,  retained  earnings of $63.7 million
     were unrestricted as of March 31, 2000.

7.   Comprehensive Earnings (Loss)
     The company's  comprehensive  earnings were $13.6 and $10.7 million for the
     three-month   periods   ended  March  31,  2000  and  1999,   respectively.
     Comprehensive  earnings,  for all periods presented,  were comprised of net
     earnings and foreign  currency  translation  adjustments.  No provisions or
     benefits  for U.S.  income taxes have been made on these  foreign  currency
     translation adjustments.



                                       7



8.   Earnings per Share of Common Stock
     The numerator for the  calculation of basic and diluted  earnings per share
     is net earnings.  The following  table sets forth the  computation of basic
     and  diluted  weighted-average  shares  used  in  the  earnings  per  share
     calculations:

                                                       Three Months Ended
                                                            March 31
                                                --------------------------------
                                                    2000                1999
                                                -------------      -------------
     Denominator for basic earnings
       per share
       - weighted-average shares                  23,361,393         23,224,580

     Effect of dilutive stock options                336,971            517,766
                                                -------------      -------------

     Denominator for diluted earnings
       per share                                  23,698,364         23,742,346
                                                =============      =============

9.   Operations by Segment
     (000 omitted)                                     Three Months Ended
                                                            March 31
                                                --------------------------------
                                                    2000                1999
                                                -------------      -------------
     Net Sales
     Electric Motor Technologies                $    247,876       $    147,875
     Water Systems Technologies                       87,167             81,988
                                                -------------      -------------
     Net Sales                                  $    335,043       $    229,863
                                                =============      =============

     Earnings before Interest and Taxes
     Electric Motor Technologies                $     25,923       $     18,386
     Water Systems Technologies                        9,465              8,503
                                                -------------      -------------
     Total Segments                                   35,388             26,889

     General Corporate and Research
           and Development Expenses                   (7,675)            (6,494)
     Interest Expense - Net                           (5,334)            (1,654)
                                                -------------      -------------
     Earnings before Income Taxes                     22,379             18,741
     Provision for Income Taxes                       (8,224)            (6,789)
                                                -------------      -------------
     Earnings from Continuing Operations        $     14,155       $     11,952
                                                =============      =============

     Intersegment  sales, which are immaterial,  have been excluded from segment
     revenues.



                                       8



PART I  -  FINANCIAL INFORMATION
ITEM 2  -  MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL
             CONDITION AND RESULTS OF OPERATIONS

RESULTS OF OPERATIONS
FIRST THREE MONTHS OF 2000 COMPARED TO 1999


Sales from continuing operations in the first quarter of 2000 were $335 million,
an increase of $105.1  million or 46% over sales of $229.9  million in the first
quarter  of 1999.  Approximately  $90  million  of the  increase  in  sales  was
attributable  to the MagneTek  motor  business  acquired in August 1999 with the
remaining  increase  representing  growth in the base  electric  motor and water
heater businesses.

First quarter  earnings from  continuing  operations of $14.2 million  increased
$2.2  million or 18.4% over  1999's  first  quarter  continuing  earnings of $12
million  primarily as a result of the increased  sales.  First  quarter  diluted
earnings per share for  continuing  operations  were $.60 compared with $.50 for
the first quarter of 1999.

The  company's  gross  profit  margin of 20.1% in the first  quarter of 2000 was
consistent with the 20% margin  achieved in the first quarter of 1999.  Slightly
lower margins in the electric motor business  resulting from the  aforementioned
acquisition were offset by improved margins in the water heater business.

First  quarter  sales for the Electric  Motor  Technologies  segment were $247.9
million or $100 million higher than the same period last year. Approximately $90
million of the sales  growth was  attributable  to the MagneTek  motor  business
acquisition.  Growth in the base motor  business was about 7% and resulted  from
strong customer demand in the heating, ventilating, and air conditioning (HVAC),
pump, and garage door opener markets.

First quarter operating profits for Electric Motor  Technologies  increased from
$18.4  million in 1999 to $25.9 million in 2000 as a result of the higher volume
and improved manufacturing performance throughout the operation.

First  quarter  sales for the Water  Systems  Technologies  segment  were  $87.2
million or 6.3% higher than 1999 first quarter sales of $82 million. Significant
growth in  international  operations,  most notably the water heater business in
China where sales nearly tripled over the first quarter of 1999,  contributed to
the increased  volume.  Operating profits were $9.5 million in the first quarter
of 2000 or 11.3% higher than the $8.5 million  generated in the first quarter of
1999 as a result of the higher volume.

Selling,  general,  and  administrative  (SG&A) expense for the first quarter of
2000 was $35.7 million or $11.9 million higher than the $23.8 million expense in
the first quarter of 1999. The majority of the increase was associated  with the
MagneTek acquisition.  Relative to sales, SG&A was 10.6% in the first quarter or
slightly higher than the 10.3% in the same period last year.



                                       9



The company recognized net interest expense of $5.3 million in the first quarter
of 2000,  compared with $1.7 million in the first quarter of 1999. The increased
interest expense was due to the MagneTek acquisition.

Other  expense  increased  from $1.8 million in the first  quarter of 1999 to $4
million in the first  quarter of 2000.  The largest  element of the increase was
the  amortization  of the goodwill  associated  with the  MagneTek  acquisition.
Additionally,  the first quarter of 1999  benefited  from certain  non-recurring
income items.

The first quarter effective tax rate of 36.7% in 2000 was up slightly from 36.2%
in 1999.

In the first  quarter the company  announced its intent to exit the storage tank
and  fiberglass  pipe  markets.  As a result  of the  anticipated  sale of these
businesses, Smith Fiberglass Products Company and A. O. Smith Engineered Storage
Products  Company  have  been  classified  as  discontinued  operations  in  the
accompanying financial statements.  Sales for these discontinued operations were
$28.7  million in the first  quarter of 2000  compared with $27.5 million in the
same quarter last year. The after-tax profit from the discontinued operations of
Engineered Storage Products Company in the first quarter of 2000 was $.5 million
compared to $.3 million in 1999. The first quarter after-tax loss of $.6 million
in 1999 included both discontinued businesses. During the first quarter of 2000,
$1.1 million of after-tax costs, including Smith Fiberglass Products' 2000 first
quarter after-tax loss of $.7 million,  were charged to the disposition reserves
established  at December 31, 1999. At March 31, 2000,  such reserves were deemed
adequate. The company expects its divestitures to be substantially  completed by
the end of the third quarter of 2000.

During the first three months of 2000 and 1999, the company was party to futures
contracts  for the  purposes  of  hedging  a portion  of  certain  raw  material
purchases. The company was also a party to forward foreign exchange contracts to
hedge foreign  currency  transactions  consistent with its committed  exposures.
Gains and losses  from the  company's  futures  contracts  and  forward  foreign
exchange contracts are offset by gains and losses in the underlying transactions
being hedged.

Liquidity & Capital Resources

The  company's  working  capital  was $244.3  million at March 31,  2000,  $24.1
million  higher than at December  31,  1999.  Sales  related  increases of $40.9
million to accounts  receivable  were partially  offset by increases to accounts
payable.  Cash used by continuing  operations during the first quarter was $15.7
million compared to $8.6 million during the same time period one year ago due to
higher working capital requirements.

Capital  expenditures by continuing  operations during the first quarter totaled
$11.7  million  compared with $8.7 million  during the same period in 1999.  The
majority of the increase in capital spending was related to incremental spending
requirements  in the  MagneTek  motor  businesses.  The company  expects  higher
capital spending in 2000 compared to 1999, but expects such capital expenditures
to be covered by operating cash flow.



                                       10



The company's  long term debt  increased by $13.5 million from $351.3 million at
December 31, 1999 to $364.8 million at March 31, 2000. The company's leverage as
measured by the ratio of total debt to total  capitalization  was unchanged from
the end of last year at 46%.

In  connection  with  the  MagneTek  acquisition  in 1999,  additional  purchase
liabilities of $19.4 million were recorded which included employee severance and
relocation,  as well as certain facility exit costs.  Costs incurred and charged
against the purchase liabilities totaled $.8 million and $1.8 million during the
first quarter and since the acquisition, respectively.

At its April 6, 2000  meeting,  A. O.  Smith's  Board of  Directors  declared  a
regular quarterly dividend of $.12 per share on its common stock (Class A Common
and Common).  The dividend is payable on May 15, 2000 to  shareholders of record
April 28, 2000.

ITEM 3  -  QUANTITATIVE AND QUALITATIVE DISCLOSURE OF MARKET RISK

As is more fully  described in the company's  annual report on Form 10-K for the
year ended  December 31, 1999, the company is exposed to various types of market
risks,  primarily  currency and certain  commodities.  The company  monitors its
risks in such areas on a  continuous  basis and,  generally  enters into futures
contracts  to minimize  such  exposures  for periods of less than one year.  The
company does not engage in speculation in its derivatives strategies. There have
been no material changes in the company's  futures  contracts since December 31,
1999.

Forward Looking Statements
Certain  statements  in this  report  are  "forward-looking  statements."  These
forward-looking  statements  can  generally  be  identified  as such because the
context of the  statement  will  include  words such as the company  "believes,"
"anticipates,"  "expects," "projects," or words of similar import.  Although the
company  believes that its  expectations  are based upon reasonable  assumptions
within the bounds of its  knowledge of its  business,  there can be no assurance
that its financial goals will be realized. Although a significant portion of the
company's  sales  are  derived  from the  replacement  of  previously  installed
product, and such sales are therefore less volatile, numerous factors may affect
actual results and cause results to differ  materially  from those  expressed in
forward-looking  statements  made by, or on behalf of, the company.  The company
considers most important among such factors, the stability in its electric motor
and water products  markets,  the timely and proper  integration of the MagneTek
motors  acquisition,   and  the  implementation  of  associated  cost  reduction
programs.

All subsequent written and oral forward-looking  statements  attributable to the
company,  or persons  acting on its behalf,  are  expressly  qualified  in their
entirety by these cautionary statements.



                                       11



PART II -  OTHER INFORMATION
ITEM 1  -  LEGAL PROCEEDINGS

There  have been no  material  changes  in the legal and  environmental  matters
previously  reported in Part 1, Item 3 and Note 12 of the Notes to  Consolidated
Financial  Statements  in the  company's  Form 10-K  Report  for the year  ended
December 31, 1999, which are incorporated herein by reference.


ITEM 4  -  SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS

None.


ITEM 6  -  EXHIBITS AND REPORTS ON FORM 8-K

None.



                                       12



                                   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 thereunto duly authorized.


                                                A. O. SMITH CORPORATION




April 19, 2000                                  /s/  John J. Kita
                                                -----------------------------
                                                John J. Kita
                                                Vice President,
                                                Treasurer and Controller




April 19, 2000                                  /s/  G. R. Bomberger
                                                -----------------------------
                                                G. R. Bomberger
                                                Executive Vice President
                                                and Chief Financial Officer



                                       13



                                INDEX TO EXHIBITS



Exhibit
Number             Description
- -------            -----------

(27)         Financial Data Schedule

(27-1)       Restated Financial Data Schedule



                                       14