FORM 1O-Q


                   SECURITIES AND EXCHANGE COMMISSION
                         Washington, D.C. 20549


      (Mark one)

      [X]  QUARTERLY REPORT PURSUANT TO SECTION 13 or 15 (d)
                  OF THE SECURITIES EXCHANGE ACT OF 1934

            For the quarterly period ended June 30, 2005

                              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 1-898.


                      AMPCO-PITTSBURGH CORPORATION


Incorporated in Pennsylvania.
I.R.S. Employer Identification No. 25-1117717.
600 Grant Street, Pittsburgh, Pennsylvania 15219
Telephone Number 412/456-4400


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 (or for such shorter periods
that the registrant was required to file such reports) and (2) has been
subject to such filing requirements for the past 90 days.

                             YES  X       NO



On August 3, 2005, 9,757,497 common shares were outstanding.






                                  - 1 -



                      AMPCO-PITTSBURGH CORPORATION

                                  INDEX


                                                              Page No.


Part I - Financial Information:

         Item 1 - Condensed Consolidated Financial Statements

           Condensed Consolidated Balance Sheets -
             June 30, 2005 and December 31, 2004                 3

           Condensed Consolidated Statements of Operations -
             Six and Three Months Ended June 30, 2005
             and 2004 (restated)                                 4

           Condensed Consolidated Statements of Cash Flows -
             Six Months Ended June 30, 2005
             and 2004 (restated)                                 5

           Notes to Condensed Consolidated Financial
             Statements                                          6

         Item 2 - Management's Discussion and Analysis
             of Financial Condition and Results of
             Operations                                         16

         Item 3 - Quantitative and Qualitative
             Disclosures about Market Risk                      19

         Item 4 - Controls and Procedures                       19

Part II- Other Information:

            Item 1 - Legal Proceedings                          20

            Item 4 - Submission of Matters to a Vote of
                        Security Holders                        20

            Item 6 - Exhibits                                   20

         Signatures                                             22

         Exhibit Index                                          23

         Exhibits

             Exhibit 31.1
             Exhibit 31.2
             Exhibit 32.1
             Exhibit 32.2




                                  - 2 -




                     PART I - FINANCIAL INFORMATION
                      AMPCO-PITTSBURGH CORPORATION
                  CONDENSED CONSOLIDATED BALANCE SHEETS
                               (UNAUDITED)



                                      June 30,       December 31,
                                         2005            2004

                                                      

Assets
Current assets:
Cash and cash equivalents           $  6,208,958    $  11,339,514
Short-term marketable securities      23,755,000       25,455,000
Receivables, less allowance for
 doubtful accounts of $696,069 in
 2005 and $955,677 in 2004            44,743,750       37,495,920
Inventories                           52,512,276       54,318,553
Other                                  7,876,886        8,337,414
     Total current assets            135,096,870      136,946,401
Property, plant and equipment, net    67,124,349       69,432,041
Prepaid pensions                      25,721,810       25,139,810
Goodwill                               2,694,240        2,694,240
Other noncurrent assets                3,658,666        3,731,151
                                    $234,295,935     $237,943,643

Liabilities and Shareholders' Equity
Current liabilities:
Bank overdraft facility             $  1,616,388     $          -
Accounts payable                      13,338,516       15,446,125
Accrued payrolls and employee benefits 8,506,830        8,715,427
Industrial Revenue Bond debt          13,311,000       13,311,000
Other                                 14,375,752       17,009,056
     Total current liabilities        51,148,486       54,481,608
Employee benefit obligations          27,564,507       28,871,999
Deferred income taxes                 19,245,859       18,843,171
Other noncurrent liabilities           3,387,745        7,229,456
     Total liabilities               101,346,597      109,426,234

Commitments and contingent liabilities
(Note 6)

Shareholders' equity:
Preference stock - no par value;
 authorized 3,000,000 shares; none
 issued                                        -                -
Common stock - par value $1; authorized
 20,000,000 shares; issued and
 outstanding 9,757,497 in 2005 and
 9,747,497 in 2004                      9,757,497        9,747,497
Additional paid-in capital            104,318,527      104,204,311
Retained earnings                      36,859,576       34,162,688
Accumulated other comprehensive loss  (17,986,262)     (19,597,087)
     Total shareholders' equity       132,949,338      128,517,409
                                     $234,295,935     $237,943,643



        See Notes to Condensed Consolidated Financial Statements.

                                  - 3 -




                      AMPCO-PITTSBURGH CORPORATION
             CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
                               (UNAUDITED)




                              Six Months Ended June 30,  Three Months Ended June 30,
                                   2005        2004 *          2005       2004 *


                                                               


Net sales                      $121,241,037 $100,432,174  $ 62,346,985 $ 53,645,595

Operating costs and expenses:
 Costs of products sold
  (excluding depreciation)       96,845,661   80,169,079    48,859,816   43,417,517
 Selling and administrative      14,644,439   13,856,430     7,697,261    7,049,151
 Depreciation                     3,397,118    3,209,958     1,704,272    1,613,442
 (Gain) loss on disposition
  of assets                          (1,343)       3,733         2,822       (5,235)
   Total operating expenses     114,885,875   97,239,200    58,264,171   52,074,875

Income from operations            6,355,162    3,192,974     4,082,814    1,570,720

Other (expense) income:

 Interest expense                  (246,985)    (127,658)     (142,373)     (66,592)
 Other - net                         (7,790)     395,881        34,865      152,496
                                   (254,775)     268,223      (107,508)      85,904

Income before income taxes        6,100,387    3,461,197     3,975,306    1,656,624
Income tax provision              1,451,000    1,214,000       829,000      718,000

Net income                     $  4,649,387 $  2,247,197  $  3,146,306 $    938,624

Basic and diluted earnings
 per common share:

 Net income per common share -
  basic                       $       0.48  $       0.23  $       0.32 $       0.10
 Net income per common share -
  diluted                     $       0.47  $       0.23  $       0.32 $       0.10

Cash dividends declared
 per share                    $       0.20  $       0.20  $       0.10 $       0.10

Weighted average number of
 common shares outstanding:

 Basic shares                    9,756,889     9,694,948     9,757,497    9,707,497
 Diluted shares                  9,804,380     9,755,042     9,794,432    9,760,061


* Restated - Note 12.








        See Notes to Condensed Consolidated Financial Statements.


                                  - 4 -




                      AMPCO-PITTSBURGH CORPORATION
             CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
                               (UNAUDITED)



                                           Six Months Ended June 30,
                                             2005            2004 *


                                                             

Net cash flows (used in) provided by
 operating activities                  $ (5,136,589)      $  4,328,210

Cash flows from investing activities:
 Purchases of property, plant
  and equipment                          (1,833,833)        (3,221,940)
 Purchases of short-term marketable
  securities                            (19,000,000)       (26,780,000)
 Proceeds from the sale of short-term
  marketable securities                  20,700,000         21,165,000
 Proceeds from sale of business                   -            500,000
 Proceeds from U.K. governmental grants           -            922,500
 Proceeds from sale of assets                59,196             38,757

  Net cash flows used in investing
   activities                               (74,637)        (7,375,683)

Cash flows from financing activities:
 Net proceeds from bank overdraft
  facility                                1,693,012                  -
 Proceeds from the issuance of
  common stock                              124,216            624,000
 Dividends paid                          (1,951,499)        (1,936,500)

  Net cash flows used in financing
   activities                              (134,271)        (1,312,500)

Effect of exchange rate changes on cash
 and cash equivalents                       214,941           (262,169)

Net decrease in cash and cash
 equivalents                             (5,130,556)        (4,622,142)
Cash and cash equivalents at
 beginning of period                     11,339,514         15,488,789

Cash and cash equivalents at
 end of period                        $   6,208,958       $ 10,866,647


Supplemental information:
 Income tax payments                  $     865,536       $    553,639
 Interest payments                    $     241,434       $    128,518



* Restated - Note 12.



        See Notes to Condensed Consolidated Financial Statements.


                                  - 5 -





                    AMPCO-PITTSBURGH CORPORATION
        NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                             (UNAUDITED)

1. Unaudited Condensed Consolidated Financial Statements

   The condensed consolidated balance sheet as of June 30, 2005, the
   condensed consolidated statements of operations for the six and
   three months ended June 30, 2005 and 2004 and the condensed
   consolidated statements of cash flows for the six months ended
   June 30, 2005 and 2004 have been prepared by Ampco-Pittsburgh
   Corporation (the Corporation) without audit. In the opinion of
   management, all adjustments, consisting of only normal recurring
   adjustments necessary to present fairly the financial position,
   results of operations and cash flows for the periods presented
   have been made.  The results of operations for the six and three
   months ended June 30, 2005 are not necessarily indicative of the
   operating results expected for the full year.

   Certain information and footnote disclosures normally included in
   annual financial statements prepared in accordance with
   accounting principles generally accepted in the United States of
   America have been condensed or omitted.

2. Inventories

   At June 30, 2005 and December 31, 2004, approximately 65% and
   64%, respectively, of the inventories were valued on the LIFO
   method, with the remaining inventories being valued on the FIFO
   method.  Inventories were comprised of the following:

                                               (in thousands)
                                          June 30,    December 31,
                                            2005         2004

   Raw materials                          $14,771      $13,984
   Work-in-process                         22,674       25,717
   Finished goods                           9,180        8,320
   Supplies                                 5,887        6,298
                                          $52,512      $54,319

3. Property, Plant and Equipment

   Property, plant and equipment were comprised of the following:

                                                (in thousands)
                                          June 30,    December 31,
                                            2005         2004

   Land and land improvements            $  4,301     $  4,292
   Buildings                               25,149       25,170
   Machinery and equipment                135,266      135,058
                                          164,716      164,520
   Accumulated depreciation               (97,592)     (95,088)
                                         $ 67,124     $ 69,432


                                - 6 -



4.Other Current Liabilities

  Other current liabilities were comprised of the following:

                                              (in thousands)
                                         June 30,    December 31,
                                           2005         2004

  Customer-related liabilities           $ 4,899       $ 5,991
  Other                                    9,477        11,018
                                         $14,376       $17,009

  Included in customer-related liabilities are costs expected to be
  incurred with respect to product warranties.  Changes in the
  liability for product warranty claims for the six and three months
  ended June 30, 2005 and 2004 consisted of:

                                            (in thousands)
                                   Six Months        Three Months
                                  Ended June 30,    Ended June 30,
                                  2005     2004      2005    2004

 
                                                  

  Balance at the beginning of
   the period                   $ 4,150  $ 3,435    $3,904  $3,553
  Satisfaction of warranty
   claims                        (1,666)  (1,252)     (944)   (700)
  Provision for warranty claims   1,133      933       608     335
  Other, primarily impact from
  changes in foreign currency
  exchange rates                   (158)      37      (109)    (35)
  Balance at end of the period  $ 3,459  $ 3,153    $3,459  $3,153





5.Pension and Other Postretirement Benefits

  Contributions for the six months ended June 30, 2005 and 2004 were
  as follows:
                                              (in thousands)
                                               2005    2004

  U.S. pension benefits plans                $   -   $   -
  Foreign pension benefits plan              $ 287   $ 264
  Other postretirement benefits
   (e.g. net payments)                       $ 623   $ 410
  U.K. defined contribution plan             $ 149   $   8


  Net periodic pension and other postretirement costs include the
  following components for the six and three months ended June 30,
  2005 and 2004:

                                        (in thousands)
                                       U.S. Pension Benefits
                                   Six Months      Three Months
                                  Ended June 30, Ended June 30,
                                  2005   2004      2005    2004


                                              

 Service cost                  $ 1,133 $ 1,037   $   567 $   518
 Interest cost                   3,368   3,315     1,684   1,658
 Expected return on plan assets (5,314) (5,105)   (2,657) (2,553)
 Amortization of prior
  service cost                     296     296       148     148
 Actuarial gain                    (68)    (62)      (34)    (31)
 Net benefit income            $  (585) $ (519)  $  (292) $ (260)



                                - 7 -





                                         (in thousands)
                                    Foreign Pension Benefits
                                     Six Months     Three Months
                                   Ended June 30,   Ended June
30,
                                    2005  2004      2005  2004

 Service cost                      $   - $ 551     $   -  $ 277
 Interest cost                     1,104   921       544    464
 Expected return on plan assets    (969)  (869)     (477)  (437)
 Amortization of prior service
  cost                              187    386        92    194
 Net benefit cost                  $ 322 $ 989     $ 159  $ 498


                                         (in thousands)
                                   Other Postretirement Benefits
                                    Six Months     Three Months
                                  Ended June 30,  Ended June 30,
                                    2005  2004    2005    2004

 Service cost                      $ 151 $ 119    $  75  $  60
 Interest cost                       385   391      193    196
 Amortization of prior service
  benefit                           (274) (274)    (137)  (137)
 Actuarial loss                       84    79       42     39
 Net benefit cost                  $ 346 $ 315    $ 173  $ 158





6. Commitments and Contingent Liabilities

   Outstanding standby letters of credit as of June 30, 2005
   approximated $18,686,000, the majority of which serve as
   collateral for the Industrial Revenue Bond debt.

   In connection with the sale of certain subsidiaries in 2003, the
   Corporation provided typical warranties to the buyer (such as
   those relating to income taxes, intellectual property, legal
   proceedings, product liabilities and title to property, plant and
   equipment) which primarily expire with the statutes of
   limitations. Losses suffered by the buyer as a result of the
   Corporation's breach of warranties are reimbursable by the
   Corporation up to approximately $2,000,000. Based on experience
   while owning the subsidiary, the Corporation believes no amounts
   will become due.

   During 2004, the Davy Roll operations received $1,498,000
   (800,000 GBP) of U.K. governmental grants toward the purchase and
   installation of certain machinery and equipment.  Under the
   agreement, the grants are repayable if certain conditions are not
   met including achieving and maintaining a targeted level of
   employment through March 2009.


7. Comprehensive Income

   The Corporation's comprehensive income for the six and three
   months ended June 30, 2005 and 2004 consisted of:






                                - 8 -




                                             (in thousands)
                                     Six Months        Three Months
                                   Ended June 30,    Ended June 30,
                                    2005     2004     2005     2004

   Net income                     $ 4,649 $ 2,247    $ 3,146 $  939
   Foreign currency translation
     adjustments                   (2,167)    453     (1,553)  (476)
   Adjustment to minimum pension
    liability                       1,520    (258)     1,084    127
   Unrealized holding (losses)
    gains on marketable securities   (153)     62       (153)    60
   Change in fair value
    of derivatives                  2,411     735      1,558   (192)
   Comprehensive income           $ 6,260 $ 3,239    $ 4,082 $  458


8. Foreign Exchange and Futures Contracts

   Certain of the Corporation's operations are subject to risk from
   exchange rate fluctuations in connection with sales in foreign
   currencies.  To minimize this risk, forward foreign exchange
   contracts are purchased which are designated as fair value or
   cash flow hedges. As of June 30, 2005, approximately $60,908,000
   of anticipated foreign denominated sales has been hedged with the
   underlying contracts settling at various dates through March
   2010.  As of June 30, 2005, the fair value of contracts expected
   to settle within the next 12 months, which is recorded in other
   current liabilities, approximated $643,000 and the fair value of
   the remaining contracts, which is recorded in other noncurrent
   liabilities, approximated $1,431,000.  The change in the fair
   value of the contracts designated as cash flow hedges is recorded
   as a component of accumulated other comprehensive income (loss)
   and approximated $(1,161,000), net of income taxes, as of June
   30, 2005. The change in fair value will be reclassified into
   earnings when the projected sales occur with approximately
   $(1,786,000) expected to be released to pre-tax earnings within
   the next 12 months.  During the six months ended June 30, 2005
   and 2004, approximately $(557,000) and $(529,000), respectively,
   were released to pre-tax earnings, and during the three months
   ended June 30, 2005 and 2004, approximately $(170,000) and
   $(251,000), respectively, were released to pre-tax earnings.

   (Losses) gains on foreign exchange transactions approximated
   $(216,000) and $286,000 for the six months ended June 30, 2005
   and 2004, respectively, and $(90,000) and $65,000 for the three
   months ended June 30, 2005 and 2004, respectively.

   In addition, one of the Corporation's subsidiaries is subject to
   risk from increases in the price of a commodity (copper) used in
   the production of inventory.  To minimize this risk, futures
   contracts are entered into which are designated as cash flow
   hedges.  At June 30, 2005, approximately 100% or $2,586,000 of
   anticipated commodity purchases over the next 12 months are
   hedged.  The fair value of the contracts expected to be settled
   within the next 12 months approximated $303,000 and the fair
   value of the remaining contracts approximated $(8,000) as of June
   30, 2005.  The change in the fair value of the




                                - 9 -



   contracts designated as cash flow hedges is recorded as a
   component of accumulated other comprehensive income (loss) and
   approximated
   $186,000, net of income taxes, as of June 30, 2005.  The change
   in the fair value will be reclassified into earnings when the
   projected sales occur with approximately $191,000, net of income
   taxes, expected to be released to earnings within the next 12
   months.  During the six months ended June 30, 2005 and 2004,
   approximately $353,000 and $424,000, respectively, were released
   to pre-tax earnings and during the three months ended June 30,
   2005 and 2004, approximately $145,000 and $285,000, respectively,
   were released to pre-tax earnings.

9.  Business Segments

   Presented below are the net sales and income before income taxes
   for the Corporation's two business segments.

                                           (in thousands)
                                  Six Months Ended Three Months Ended
                                      June 30,         June 30,
                                   2005      2004    2005    2004

                                                  

   Net Sales:
    Forged and Cast Rolls      $ 83,283 $ 63,285 $ 41,891 $ 33,515
    Air and Liquid Processing    37,958   37,147   20,456   20,131
     Total Reportable Segments $121,241 $100,432 $ 62,347 $ 53,646

   Income before income taxes:
    Forged and Cast Rolls      $  6,943 $  3,222 $  4,366 $  1,501
    Air and Liquid Processing     1,889    2,437      938    1,319
     Total Reportable Segments    8,832    5,659    5,304    2,820
     Other expense, including
      corporate costs - net      (2,732)  (2,198)  (1,329)  (1,163)

        Total                  $  6,100 $  3,461 $  3,975 $  1,657




  Income before income taxes for the Air and Liquid Processing
  segment for the six and three months ended June 30, 2005 and 2004
  includes the majority of the legal and case management costs
  associated with personal injury claims and insurance recovery
  litigation related to asbestos-containing product and indemnity
  payments not expected to be recovered from insurance carriers (see
  Note 10).

10. Litigation and Environmental Matters

  The Corporation and its subsidiaries are involved in various
  claims and lawsuits incidental to their businesses.  In addition,
  claims have been asserted alleging personal injury from exposure
  to asbestos-containing components historically used in some
  products of certain of the Corporation's subsidiaries.  Those
  subsidiaries, and in some cases, the Corporation, are defendants
  (among a number of defendants, typically over 50 and often over
  100) in cases filed in various state and federal courts.  The
  following table reflects information about these cases for the six
  months ended June 30, 2005:

     Approximate open claims at end of period: 16,600
     Approximate gross settlement and defense costs: $4,424,000
     Approximate claims settled or dismissed during the period: 8,800



                               - 10 -


  Of the approximate 16,600 claims pending as of June 30, 2005, over
  8,600 were made in five lawsuits filed in Mississippi in 2002.
  Substantially all settlement and defense costs in the above table
  were paid by insurers.

  On February 7, 2003, Utica Mutual Insurance Company ("Utica")
  filed a lawsuit in the Supreme Court of the State of New York,
  County of Oneida ("Oneida County Litigation") against the
  Corporation and certain of the subsidiaries named in the
  underlying asbestos actions (the "Policyholder Defendants") and
  three other insurance carriers that provided primary coverage to
  the Corporation (the "Insurer Defendants").  In the lawsuit, Utica
  disputed certain coverage obligations to the Policyholder
  Defendants and asserted that the Insurer Defendants also had
  defense and indemnity obligations to the Policyholder Defendants.

  As of November 24, 2003, the Policyholder Defendants and Utica had
  settled the Oneida County Litigation as among themselves, although
  the Oneida County Litigation remained pending because settlement
  had not been reached with all of the Insurer Defendants.  Pursuant
  to the settlement, Utica accepted financial responsibility,
  subject to the limits of its policies and based on fixed defense
  percentages and specified indemnity allocation formulas, for a
  substantial majority of the asbestos personal injury claims
  arising out of exposure to alleged asbestos-containing components
  in products distributed by the Policyholder Defendants that are
  subsidiaries of the Corporation.  Utica's agreed share of such
  defense and indemnification costs varies depending upon the
  alleged asbestos-containing product at issue, whether Utica's
  primary or umbrella policies are responsible for the claims and,
  for indemnification costs only, the years of the claimant's
  exposure to asbestos.

  On January 23, 2004, Utica sought the court's approval to file an
  amended complaint seeking additional relief against the
  Policyholder Defendants that is substantially identical to the
  relief Utica seeks against those defendants in a separate lawsuit
  filed by Howden Buffalo, Inc. ("Howden") in the United States
  District Court for the Western District of Pennsylvania (the
  "Pennsylvania Litigation") that is described below.  Utica also
  sought to add Howden as a defendant in the Oneida County
  Litigation.

  On November 25, 2003, Howden filed the Pennsylvania Litigation
  against the Corporation, Utica and two of the Insurer Defendants
  (with Utica, the "Howden Insurer Defendants").  Howden alleges
  that (1) Buffalo Forge Company, a former subsidiary of the
  Corporation, or its predecessors (collectively or individually,
  "Buffalo Forge") had rights in certain policies issued by the
  Howden Insurer Defendants; (2) those rights were transferred in
  the 1993 transaction whereby the Corporation sold all of the
  capital stock of Buffalo Forge to Howden Group America, Inc. and
  Howden Group Canada, Ltd.; and (3) those rights currently reside
  in Howden, as successor to Buffalo Forge.  In the lawsuit, Howden
  is seeking a judicial determination of the rights and duties of
  the Corporation and the Howden Insurer Defendants under those
  policies with respect to asbestos-related personal injury claims
  asserted against Howden arising from the historical operations of
  Buffalo Forge, as well as monetary damages from Utica as a result
  of its denial of Howden's rights under policies it issued that
  allegedly covered Buffalo Forge.  The Corporation intends to
  defend the lawsuit vigorously.  If Howden is successful in this
  lawsuit and obtains coverage from the Howden Insurer

                               - 11 -



  Defendants, however, any insurance recovery obtained by Howden
  under those policies could erode, in whole or in part, the
  applicable coverage limits, which would reduce or eliminate
  coverage amounts that otherwise may be available to the
  Corporation under those policies.

  As one of the Howden Insurer Defendants, Utica has filed a cross-
  claim against the Corporation, and a third-party complaint against
  two of its subsidiaries, seeking a declaratory judgment that, to
  the extent Utica has defense or indemnity obligations to Howden:
  (1) Utica is entitled to contribution, subrogation and
  reimbursement from the Corporation or its subsidiaries with
  respect to defense and indemnity payments paid on behalf of the
  Corporation or its subsidiaries; and (2)the Corporation and its
  subsidiaries have no rights under the insurance contracts issued
  by Utica to Buffalo Forge.  The Corporation believes that Utica's
  cross-claim and third party claims, as well as the similar relief
  Utica now seeks in the Oneida County Litigation, are barred by a
  release provided in the settlement of the Oneida County Litigation
  and is otherwise without merit, and intends to assert that
  position in this lawsuit.  If Utica is successful in obtaining the
  declaratory relief it seeks, it could eliminate insurance coverage
  provided to the Corporation by Utica.

  The Corporation believes it has meritorious defenses to the Howden
  lawsuit and Utica's cross claims.  In addition, based on the
  Corporation's claims experience to date with the underlying
  asbestos claims, the available insurance coverage and the identity
  of the subsidiaries that are named in the cases, the Corporation
  believes that the pending legal proceedings will not have a
  material adverse effect on its consolidated financial condition or
  liquidity.  The outcome of particular lawsuits, however, could be
  material to the consolidated results of operations of the period
  in which the costs, if any, are recognized.

  There can be no assurance that the Corporation or certain of its
  subsidiaries will not be subjected to significant additional
  claims in the future or that the Corporation's or its
  subsidiaries' ultimate liability with respect to these claims will
  not present significantly greater and longer lasting financial
  exposure than presently contemplated.   The Corporation has made
  an accrual in its financial statements to reflect its estimated
  share of costs for pending asbestos claims, based on deductible
  and similar features of its relevant insurance policies.  In
  addition, the Corporation incurred uninsured legal costs in
  connection with advice on certain matters pertaining to these
  asbestos cases including insurance litigation, case management and
  other issues.  Those costs amounted to approximately $429,000 and
  $236,000 for the six and three months ended June 30, 2005,
  respectively, in comparison to $728,000 and $223,000 for the same
  periods of the prior year.

  With respect to environmental matters, the Corporation is
  currently performing certain remedial actions in connection with
  the sale of real estate previously owned and has been named a
  Potentially Responsible Party at four third-party landfill sites.
  In addition, as a result of the sale of certain subsidiaries, the
  Corporation retained the liability to remediate certain
  environmental contamination at two of the sold locations and has
  agreed to indemnify the buyer against third-party claims arising
  from the discharge of certain contamination from one of these
  locations, the cost for which was accrued at the time of sale.
  Environmental exposures are difficult to assess and estimate for

                               - 12 -



  numerous reasons including lack of reliable data, the multiplicity
  of possible solutions, the years of remedial and monitoring
  activity required, and identification of new sites.  However, in
  the opinion of management, the potential liability for all
  environmental proceedings of approximately $2,300,000 at June 30,
  2005 is considered adequate based on information known to date.

11. Flood Damage

  In September 2004, the Carnegie, Pennsylvania plant of the
  Corporation's Union Electric Steel subsidiary was damaged by
  flooding as a result of the remnants of Hurricane Ivan.  The
  Corporation received $5,740,000 toward its claim of which
  $3,000,000 was received in 2004.  Of the $2,740,000 received in
  2005, $2,320,000 represents settlement of its business
  interruption insurance claim which was recorded as a reduction of
  costs of products sold (excluding depreciation) in the
  accompanying condensed consolidated statements of operations.  The
  remaining $3,420,000 represents reimbursement of clean-up costs,
  repairs to machinery and recovery of certain fixed expenses.

12. Restatement

  Subsequent to the issuance of the Corporation's condensed
  consolidated financial statements for the six and three months
  ended June 30, 2004, the Corporation determined that deferred tax
  liabilities were not required to be provided for interest
  receivable from its U.K. subsidiary on intercompany debt owed to
  the Corporation.  Additionally, subsequent to the issuance of the
  Corporation's consolidated financial statements for the year ended
  December 31, 2004, the Corporation concluded, based on
  supplemental guidance issued, that auction-rate securities did not
  meet the definition of cash equivalents and should therefore be
  classified as short-term marketable securities. Accordingly, the
  accompanying condensed consolidated financial statements for the
  six and three months ended June 30, 2004 have been restated from
  the amounts previously reported.

  The effect of reversing the deferred tax liabilities on the
  condensed consolidated statements of operations for the six and
  three months ended June 30, 2004 were as follows:

                         (in thousands, except per share amounts)
                            Six Months Ended   Three Months Ended
                          Previously    As     Previously   As
                           Reported  Restated   Reported Restated

  Income tax provision       $1,413   $1,214     $  817  $  718
  Net income                  2,048    2,247        840     939
  Net income per common share:
   Basic                       0.21     0.23       0.09    0.10
   Diluted                     0.21     0.23       0.09    0.10

  The effect of correcting the classification of its investments in
  auction-rate securities from cash and cash equivalents to short-
  term marketable securities on the accompanying condensed
  consolidated statement of cash flows for the six months ended June
  30, 2004 was as follows:



                               - 13 -

                                                  (in thousands)
                                                Previously     As
                                                Reported  Restated

  Purchases of short-term marketable securities   $     -  $(26,780)
  Proceeds from the sale of short-term marketable
   securities                                           -    21,165
  Net cash flows used in investing activities      (1,761)   (7,376)
  Net increase (decrease) in cash and cash
   equivalents                                        993    (4,622)
  Cash and cash equivalents at beginning of period 35,739    15,489
  Cash and cash equivalents at end of period       36,732    10,867


13. Recently Issued Accounting Pronouncements

  In November 2004, the Financial Accounting Standards Board (FASB)
  issued Statement of Financial Accounting Standards (SFAS) No. 151,
  "Inventory Costs" which confirms that accounting for abnormal amounts of
  idle facility expense, freight, handling costs, and wasted material
  (spoilage) be recognized as current period charges and that
  allocation of fixed production overheads to inventories be based
  on normal capacity of the production facilities. The provisions of
  SFAS No. 151 will become effective for the Corporation on January
  1, 2006 and are not expected to have a significant effect on its
  financial condition or results of operations.

  In December 2004, the FASB issued SFAS No. 153, "Exchanges of
  Nonmonetary Assets" which amends previously issued guidance by
  eliminating the exception from fair value measurement for
  nonmonetary exchanges of similar productive assets and replaces it
  with an exception for exchanges which do not have commercial
  substance.  The provisions of SFAS No. 153 will become effective
  for the Corporation on July 1, 2005. Until the Corporation enters
  into such transactions, the standard will not impact the
  Corporation's financial condition or results of operations.

  In December 2004, the FASB issued SFAS No. 123 (R), "Shared-Based
  Payment" which requires companies to recognize compensation cost
  for stock options and other stock-based awards based on their fair
  value.  Companies will no longer be permitted to follow the
  intrinsic value accounting method.  The provisions of SFAS No.
  123(R) become effective for the Corporation on January 1, 2006 and
  the Corporation will adopt the standard prospectively.  Until the
  Corporation issues additional share-based payments in 2006 or
  thereafter, the standard will not impact the Corporation's
  financial condition or results of operations (see Note 14).

  In March 2005, the FASB issued an interpretation of SFAS No. 143,
  "Accounting for Conditional Asset Retirement Obligations" which
  clarifies the term conditional asset retirement obligation.  The
  interpretation did not impact the Corporation's financial
  condition or results of operations.

  In May 2005, the FASB issued SFAS No. 154, "Accounting Changes and
  Error Corrections - a replacement of APB Opinion No. 20 and FASB
  Statement No. 3" which provides guidance for the accounting and
  reporting of a change in accounting principle.  It also applies to
  changes required by a newly-issued accounting pronouncement if
  that pronouncement does not


                               - 14 -


  provide such guidance.  Previously, changes in accounting
  principles were recognized by including the cumulative effect of
  changing to the new accounting principle in net income of the
  period of the change.  SFAS No. 154 requires retrospective
  application to prior periods and becomes effective for the
  Corporation on January 1, 2006.  Until the Corporation makes any
  such changes, the standard will not impact the Corporation's
  financial condition or results of operations.

14. Subsequent Event

  On July 26, 2005, the Stock Option Committee of the Board of
  Directors agreed to issue to selected employees the remaining
  45,000 stock options available under the 1997 Stock Option Plan,
  as amended.  The exercise price of $13.67 is equivalent to the
  market price on the date of grant.

















                               - 15 -




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


Executive Overview

The Corporation currently operates in two business segments - the
Forged and Cast Rolls segment and the Air and Liquid Processing
segment. The Forged and Cast Rolls segment is benefiting from a
strong global steel industry and the weaker dollar which is
improving export business, particularly to the Asian and Indian
markets.  While the unprecedented cost increases experienced in 2004
for raw materials and natural gas have begun to stabilize, they
remain at historically high cost levels.  Operating results for 2005
are expected to continue to improve in the latter part of the year
as the segment progressively works through its backlog and increased
pricing and raw material and energy surcharges flow through to
earnings.  Additional machinery brought on-line late in 2004 at Davy
Roll has begun to contribute to operational improvements and has
added needed capacity.

The Air and Liquid Processing segment generally lags any downturn in
the economy; accordingly, the segment was not affected by the weak
economy until 2003.  Similarly, any recovery will not immediately
improve operating results.  In particular, demand for lube oil pumps
is expected to remain steady but significantly below peak levels in
2002 and 2001 due to reduced demand for gas turbines.  The segment
is also being impacted by higher material costs, the slow down in
the construction industry particularly related to air handling
systems for the pharmaceutical, institutional and health care
markets, and the resulting decline in margins following aggressive
pricing by competitors as a reduced level of potential business is
pursued. Product offerings have been expanded but no significant
improvement is expected until capital spending for new construction
improves.

The following MD&A gives effect to the restatement discussed in Note
12 to the condensed consolidated financial statements for the six
and three months ended June 30, 2004.


Operations for the Six and Three Months Ended June 30, 2005 and 2004

Net Sales.  Net sales for the six and three months ended June 30,
2005 were $121,241,000 and $62,347,000, respectively, compared to
$100,432,000 and $53,646,000,for the same periods of 2004.  A
discussion of sales for the Corporation's two segments is included
below.  Order backlogs approximated $249,534,000 at June 30, 2005
against $164,981,000 at December 31, 2004. The increase is
attributable principally to the Forged and Cast Rolls segment.
Approximately $129,217,000 of the June 30, 2005 backlog is scheduled
for shipment beyond 2005.

Costs of Products Sold.  Costs of products sold, excluding
depreciation, were 79.9% and 79.8% of net sales for the six months
ended June 30, 2005 and 2004, respectively, and 78.4% and 80.9% of
net sales for the three months ended June 30, 2005 and 2004,
respectively.  Included as a reduction of costs of products sold for
the six and three months ended June 30, 2005, is approximately
$2,320,000 and $1,717,000 of proceeds from the settlement of the
Corporation's business interruption insurance claim, offsetting
substantially higher raw material and natural gas costs.


                               - 16 -


Selling and Administrative.  Selling and administrative expenses for
the six and three months ended June 30, 2005 approximated 12.1% and
12.4% of net sales, respectively, and 13.8% and 13.1% of net sales
for the comparable prior year periods.  The decrease is due to
higher sales which dilute the effect of certain selling and
administrative costs which are fixed in nature.

Income from Operations.  Income from operations for the six and
three months ended June 30, 2005 approximated $6,355,000 and
$4,083,000, respectively, against $3,193,000 and $1,571,000 for the
comparable prior year periods.  A discussion of year-to-date and
second quarter results for the Corporation's two segments is
included below.

Forged and Cast Rolls.  Sales and operating income for the six and
three months ended June 30, 2005 improved over the comparable prior
year periods as a result of greater demand from steel producers
throughout the world and better margins as surcharges and price
increases for raw material and energy began to flow through to
earnings.  Additionally, during the quarter, the segment finalized
its 2004 flood-related business interruption insurance claim
recording income of $1,717,000 in the quarter for a six month total
of $2,320,000.  Backlog approximated $217,776,000 as of June 30,
2005 in comparison to $138,729,000 as of December 31, 2004. The
increase is reflective of global demand for products for both the
U.S. and U.K. operations. Approximately $123,272,000 of the June 30,
2005 backlog is scheduled for shipment beyond 2005.

Air and Liquid Processing.  Sales for the six and three months ended
June 30, 2005 were comparable.  Operating income declined due
principally to the weak performance of the air handling business
which is being impacted by a decline in construction activity and
depressed pricing on available projects.  Results for the pumps
operation remain in line with the prior period.  Earnings for the
heat exchange coil business have improved due to an increase in
sales, particularly to electric-utility customers.  Backlog
approximated $31,758,000 as of June 30, 2005 in comparison to
$26,252,000 as of December 31, 2004; the increase is attributable to
receipt of long lead-time pump orders for U.S. Navy ships.
Approximately $5,945,000 of the June 30, 2005 backlog is scheduled
for shipment beyond 2005.

Other (Expense) Income.  Other (expense) income for the six months
ended June 30, 2005 and 2004 approximated $(255,000) and 268,000,
respectively, and $(108,000) and $86,000 for the three months ended
June 30, 2005 and 2004, respectively.  The change is due primarily
to losses on foreign exchange transactions in 2005 versus gains on
foreign exchange transactions in 2004.

Income Taxes.  The effective tax rate approximated 23.8% and 35.1%
for the six months ended June 30, 2005 and 2004, respectively, and
20.9% and 43.3% for the three months ended June 30, 2005 and 2004,
respectively.  The decrease is attributable principally to
profitability of the U.K. operations for which no tax liability
arises, due to utilization of net operating loss carryforwards, and
beneficial permanent deductions.

Net Income.  As a result of the above, the Corporation's net income
for the six months ended June 30, 2005 and 2004 equaled $4,649,000
and $2,247,000, respectively, and $3,146,000 and $939,000,
respectively, for the three months ended June 30, 2005 and 2004.



                               - 17 -


Liquidity and Capital Resources

Net cash flows (used in) provided by operating activities
approximated $(5,137,000) and $4,328,000 for the six months ended
June 30, 2005 and 2004, respectively.  The decrease is attributable
primarily to an increase in accounts receivable arising from higher
sales for the second quarter of 2005 versus second quarter of 2004
and a reduction in accounts payable due primarily to timing of
payments.

Net cash flows used in investing activities were $(75,000) and
$(7,376,000) for the six months ended June 30, 2005 and 2004,
respectively.  The change is attributable to a reduction in net
purchases of short-term marketable securities and lower capital
expenditures.  Capital expenditures approximated $1,834,000 for the
six months ended June 30, 2005 and $3,222,000 for the six months
ended June 30, 2004 of which approximately $923,000 of U.K.
governmental grants were received during the same period reducing
the net cost of the expenditures.  Additionally, the remaining sales
proceeds of $500,000 from the 2003 sale of the Plastic Processing
Machinery segment were received in 2004.  As of June 30, 2005,
future capital expenditures totaling $3,774,000 have been approved.
Funds on-hand and funds generated by future operations are expected
to be sufficient to finance capital expenditure requirements.

Net cash flows used in financing activities were $(134,000) and
$(1,313,000) for the six months ended June 30, 2005 and 2004,
respectively. As of June 30, 2005, Davy Roll had borrowings
outstanding under its bank overdraft facility of approximately
$1,616,000.  Dividends were paid at a rate of $0.20 per share for
each of the six month periods.  Issuance of stock under the
Corporation's stock option plan provided cash of $124,000 and
$624,000 for the respective six month periods.

The change in the value of the British pound against the dollar
impacted cash and cash equivalents by $215,000 and $(262,000) for
the six months ended June 30, 2005 and 2004.

The Corporation maintains short-term lines of credit and an
overdraft facility in excess of the cash needs of its businesses.
The total available at June 30, 2005 was approximately $8,200,000
(including 2,100,000 GBP in the U.K. and 400,000 Euros in Belgium).


Litigation and Environmental Matters

See Note 10 to the condensed consolidated financial statements.


Critical Accounting Pronouncements

The Corporation's critical accounting policies, as summarized in its
Form 10-K/A for the year ended December 31, 2004, remain unchanged.


Recently Issued Accounting Pronouncements

See Note 13 to the condensed consolidated financial statements.


Forward-Looking Statements

The Private Securities Litigation Reform Act of 1995 provides a safe
harbor for forward-looking statements made by or on behalf of the
Corporation.  Management's Discussion and Analysis and other
sections of the Form 10-Q

                               - 18 -






contain forward-looking statements that reflect the Corporation's
current views with respect to future events and financial
performance.  Forward-looking statements are identified by the use
of the words "believe," "expect," "anticipate," "estimate,"
"projects," "forecasts" and other expressions that indicate future
events and trends. Forward-looking statements speak only as of the
date on which such statements are made, are not guarantees of future
performance or expectations and involve risks and uncertainties.  In
addition, there may be events in the future that the Corporation is
not able to accurately predict or control which may cause actual
results to differ materially from expectations expressed or implied
by forward-looking statements. The Corporation undertakes no
obligation to update any forward-looking statement, whether as a
result of new information, events or otherwise.  These forward-
looking statements shall not be deemed incorporated by reference by
any general statement incorporating by reference this Form 10-Q into
any filing under the Securities Act of 1933 or the Securities
Exchange Act of 1934 and shall not otherwise be deemed filed under
such Acts.


 ITEM 3 - QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

There were no material changes in the Corporation's exposure to
market risk from December 31, 2004.


                  ITEM 4 - CONTROLS AND PROCEDURES

(a) Disclosure controls and procedures. An evaluation of the
effectiveness of the Corporation's disclosure controls and
procedures as of the end of the period covered by this report was
carried out under the supervision, and with the participation, of
the management, including the principal executive officer and
principal financial officer.  Disclosure controls and procedures are
defined under Securities and Exchange Commission ("SEC") rules as
controls and other procedures that are designed to ensure that
information required to be disclosed by a company in reports that it
files under the Exchange Act are recorded, processed, summarized and
reported within the required time periods.  Based on that
evaluation, the Corporation's management, including the principal
executive officer and principal financial officer, have concluded
that the Corporation's disclosure controls and procedures were
effective as of June 30, 2005.

(c) Changes in internal control over financial reporting. During the
quarter ended June 30, 2005, except as disclosed below, there have
been no changes in our internal control over financial reporting
that have materially affected, or are reasonably likely to
materially affect, our internal control over financial reporting.

The Corporation's management, including the principal executive
officer and principal financial officer, believe that the material
weakness in the Corporation's internal control over financial
reporting with respect to classification of redeemable instruments
that are subject to remarketing agreements, discussed in the
Corporation's Form 10-Q for the three months ended March 31, 2005,
was remediated during the quarter ended June 30, 2005.  The remedial
actions included:

  -    Requiring all future debt agreements to be reviewed by the
       finance department for proper balance sheet classification.
  -    Improving understanding of relevant personnel of the
       requirements of EITF D-61, "Classification by the Issuer of
       Redeemable Instruments That Are Subject to Remarketing
       Agreements".

                               - 19 -


                     PART II - OTHER INFORMATION
                    AMPCO-PITTSBURGH CORPORATION


Item 1     Legal Proceedings

           The information contained in Note 10 to the condensed
           consolidated financial statements (Litigation and
           Environmental Matters) is incorporated herein by reference.

Items 2-3  None

Item 4     Submission of Matters to a Vote of Security Holders

           On April 28, 2005 at the annual meeting of shareholders, the
           following individuals were elected directors of the
           Corporation by the following votes:


                                        For        Withheld
           Louis Berkman             8,796,405      71,815
           William K. Lieberman      8,846,922      21,298
           Stephen E. Paul           8,801,130      67,090
           Carl H. Pforzheimer, III  8,790,391      77,829

Item 5     None

Item 6     Exhibits

        (3)Articles of Incorporation and By-laws

            (a)  Articles of Incorporation

                 Incorporated by reference to the Quarterly Reports on
                 Form 10-Q for the quarters ended March 31, 1983,
                 March 31, 1984, March 31, 1985, March 31, 1987 and
                 September 30, 1998.

            (b)  By-laws

                Incorporated by reference to the Quarterly Reports
                on Form 10-Q for the quarters ended September 30,
                1994, March 31, 1996, June 30, 2001 and June 30,
                2004.

        (4) Instruments defining the rights of securities holders

                 (a) Rights Agreement between Ampco-Pittsburgh
                     Corporation and Chase Mellon Shareholder
                     Services dated as of September 28, 1998.


                     Incorporated by reference to the Form 8-K Current
                     Report dated September 28, 1998.

        (10)  Material Contracts

            (a)  1988 Supplemental Executive Retirement Plan

                 Incorporated by reference to the Quarterly Report
                 on Form 10-Q for the quarter ended March 31, 1996.



                               - 20 -



             (b) Severance Agreements between Ampco-Pittsburgh
                 Corporation and certain officers and employees
                 of Ampco-Pittsburgh Corporation.

                 Incorporated by reference to the Quarterly Report
                 on Form 10-Q for the quarter ended September 30,
                 1988; the Quarterly Report on Form 10-Q for the
                 quarter ended September 30, 1994; the Annual Report
                 on Form 10-K for fiscal year ended December 31,
                 1994; the Quarterly Report on Form 10-Q for the
                 quarter ended June 30, 1997; the Annual Report on
                 Form 10-K for the fiscal year ended December 31,
                 1998; and the Quarterly Report on Form 10-Q for the
                 quarter ended June 30, 1999.

            (c)  1997 Stock Option Plan, as amended.

                 Incorporated by reference to the Proxy Statements
                 dated March 14, 1997 and March 15, 2000.

         (31.1)  Certification of the principal executive officer
                 pursuant to Section 302 of the Sarbanes-Oxley Act
                 of 2002

         (31.2)  Certification of the principal financial officer pursuant
                 to Section 302 of the Sarbanes-Oxley Act of 2002

         (32.1)  Certification of principal executive officer pursuant to
                 Section 906 of the Sarbanes-Oxley Act of 2002

         (32.2)  Certification of principal financial officer
                 pursuant to Section 906 of the Sarbanes-Oxley Act
                 of 2002



























                               - 21 -







                             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.





                                 AMPCO-PITTSBURGH CORPORATION




DATE:  August 3, 2005            BY:  s/Robert A. Paul
                                      Robert A. Paul
                                      Chairman and
                                        Chief Executive Officer




DATE:  August 3, 2005            BY:  s/Marliss D. Johnson
                                      Marliss D. Johnson
                                      Vice President
                                        Controller and Treasurer





























                               - 22 -



                   AMPCO-PITTSBURGH CORPORATION

                           EXHIBIT INDEX





Exhibit (31.1) Certification of principal executive officer pursuant
               to Section 302 of the Sarbanes-Oxley Act of 2002

        (31.2) Certification of principal financial
               officer pursuant to Section 302 of the Sarbanes-Oxley
               Act of 2002

Exhibit (32.1) Certification of principal executive
               officer pursuant to Section 906 of the Sarbanes-Oxley
               Act of 2002

        (32.2) Certification of principal financial officer pursuant to
               Section 906 of the Sarbanes-Oxley Act of 2002








































                              - 23 -