UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date or earliest event reported) April 20, 2005 AMPCO-PITTSBURGH CORPORATION (Exact name of registrant as specified in its charter) Pennsylvania 1-898 25-1117717 (State or other (Commission file number) (I.R.S. Employer jurisdiction Identification of incorporation) Number) 600 Grant Street Pittsburgh, PA 15219 (Address of principal (Zip Code) executive offices) Registrant's telephone number, including area code: (412) 456-4400 (Former name or former address, if changed since last report.) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.21 below): [ ] Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) [ ] Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) [ ] Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) [ ] Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Item 2.02. Disclosure of Results of Operations and Financial Condition. On April 20, 2005, Ampco-Pittsburgh Corporation issued a press release announcing its results for the three months ended March 31, 2005. A copy of the press release is attached hereto and is being furnished to the SEC. SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. AMPCO-PITTSBURGH CORPORATION Date: April 20, 2005 By: s/Ernest G. Siddons Ernest G. Siddons President