UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                              Washington, DC 20549

                                 SCHEDULE 13G/A

                   Under the Securities Exchange Act of 1934
                               (Amendment No.1)*

                               WABTEC CORPORATION
- --------------------------------------------------------------------------------
                                (Name of Issuer)

                                  COMMON STOCK
- --------------------------------------------------------------------------------
                         (Title of Class of Securities)

                                   960386100
- --------------------------------------------------------------------------------
                                 (CUSIP Number)

Check the following box if a fee is being paid with this statement / /. (A fee
is not required only if the filing person: (1) has a previous statement on file
reporting beneficial ownership of more than five percent of the class of
securities described in Item 1; and (2) has filed no amendment subsequent
thereto reporting beneficial ownership of five percent or less of such class.)
(See Rule 13d-7).

*The remainder of this cover shall be filled out for a reporting person's
initial filing on this form with respect to the subject class of securities, and
for any subsequent amendment containing information which would alter the
disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be deemed
to be "filed" for the purpose of Section 18 of the Securities Exchange Act of
1934 ("Act") or otherwise subject to the liabilities of that section of the Act
but shall be subject to all other provisions of the Act (however, see the
Notes).


Cusip No. 960386100 13G Page 2 of 7 Pages 1. NAME OF REPORTING PERSON S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSON ------------------------------------------------------------- SHAPIRO CAPITAL MANAGEMENT COMPANY, INC. -- ID NO. 58-1830170 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) (b) 3. SEC USE ONLY 4. CITIZENSHIP OR PLACE OF ORGANIZATION ---------------------------------------------------------------- SHAPIRO CAPITAL MANAGEMENT COMPANY, INC. IS A GEORGIA CORPORATION NUMBER OF 5. SOLE VOTING POWER 3,531,157 SHARES BENEFICIALLY 6. SHARED VOTING POWER 0 OWNED BY EACH 7. SOLE DISPOSITIVE POWER 3,531,157 REPORTING PERSON WITH 8. SHARED DISPOSITIVE POWER 0 9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 3,531,157 10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* 11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 8.19% 12. TYPE OF REPORTING PERSON* IA

Cusip No. 960386100 13G Page 3 of 7 Pages 1. NAME OF REPORTING PERSON S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSON ------------------------------------------------------------- SAMUEL R. SHAPIRO AS REPORTING PERSON -- SS - ###-##-#### 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) (b) 3. SEC USE ONLY 4. CITIZENSHIP OR PLACE OF ORGANIZATION ---------------------------------------------------------------- SHAPIRO CAPITAL MANAGEMENT COMPANY, INC. IS A GEORGIA CORPORATION NUMBER OF 5. SOLE VOTING POWER 0 SHARES BENEFICIALLY 6. SHARED VOTING POWER 0 OWNED BY EACH 7. SOLE DISPOSITIVE POWER 0 REPORTING PERSON WITH 8. SHARED DISPOSITIVE POWER 0 9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 0 10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* 11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 .00% 12. TYPE OF REPORTING PERSON* IA

Cusip No. 960386100 13G Page 4 of 7 Pages Schedule 13G Additional Information Item # 1. (a) Name of Issuer: WABTEC CORPORATION (b) Address of Issuer's Principal Executive Offices: 1001 AIR BRAKE AVENUE, WILMERDING, PENNSYLVANIA 15148 2. (a) Name of Person Filing: SAMUEL R. SHAPIRO, SHAPIRO CAPITAL MANAGEMENT COMPANY, INC. (b) Address of Principal Business Office for Each of the Above: 3060 PEACHTREE ROAD, N.W., ATLANTA, GEORGIA 30305 (c) Citizenship: SAMUEL R. SHAPIRO -- U.S. CITIZEN SHAPIRO CAPITAL MANAGEMENT COMPANY, INC. -- GEORGIA CORPORATION (d) Title of Class of Securities: COMMON STOCK (e) CUSIP Number: 960386100 3. If this statement is filed pursuant to Rule 13d-1(b), or 13d-2(b). The person filing is a: IA

Cusip No. 960386100 13G Page 5 of 7 Pages 4. Ownership: (a) Amount Beneficially Owned: 3,531,157 (b) Percent of Class: 8.19% (c) Number of shares as to which such person has: (i) sole power to vote or to direct the vote 3,531,157 (ii) shared power to vote or to direct the vote 0 (iii) sole power to dispose or to direct the disposition of 3,531,157 (iv) shared power to dispose or to direct the disposition of 0 5. Ownership of Five Percent or Less of a Class: If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following. / / 6. Ownership of More than Five Percent on Behalf of Another Person: See attached 7. Identification and Classification of the Subsidiary which Acquired the Security Being Reported on by the Parent Holding Company N/A 8. Identification and Classification of Members of the Group: N/A 9. Notice of Dissolution of Group: N/A 10. Certification: By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired in the ordinary course of business and were not acquired for the purpose of and do not have the effect of changing or influencing the control of the issuer of such securities and were not acquired in connection with or as a participant in any transaction having such purpose or effect. SIGNATURE After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct. ----------------------- Date: ----------------------- Signature ----------------------- Name/Title

Cusip No. 960386100 13G Page 6 of 7 Pages INTRODUCTORY NOTE This Schedule 13G is being filed by Shapiro Capital Management Company, Inc., an investment adviser under the Investment Advisers Act of 1940. One or more of Shapiro Capital Management Company, Inc.'s advisory clients is the legal owner of the securities covered by this statement. Pursuant to the investment advisory agreements with its clients, Shapiro Capital Management Company, Inc. has the authority to direct the investments of its advisory clients, and consequently to authorize the disposition of the Issuer's shares. This Schedule 13G is also being filed by Samuel R. Shapiro. Mr. Shapiro is the president, a director and majority shareholder of Shapiro Capital Management Company, Inc., in which capacity he exercises dispositive power over the securities reported herein by Shapiro Capital Management Company, Inc. Mr. Shapiro, therefore, may be deemed to have indirect beneficial ownership over such securities. Unless otherwise indicated herein, Mr. Shapiro has no interest in dividends or proceeds from the sale of such securities, owns no such securities for his own account and disclaims beneficial ownership of all the securities reported herein by the Shapiro Capital Management Company, Inc. The aggregate number and percentage of the Issuer's securities to which this Schedule 13G relates is 3,531,157 representing 8.19% of the Issuer's outstanding shares. The beneficial ownership reported by Samuel R. Shapiro and Shapiro Capital Management Company, Inc. relates to the same shares of the Issuer in which each such reporting person has a separate beneficial interest. As of March 31, 2002, Mr. Shapiro owned no shares of the Issuer for his own account. Item 6. Samuel R. Shapiro is the president, director and majority shareholder of Shapiro Capital Management Company, Inc. He owns no shares of the Issuer for his individual account, but is deemed to have beneficial ownership of the shares reported on the Schedule 13G by virtue of his affiliation with Shapiro Capital Management Company, Inc. Shapiro Capital Management Company, Inc. is an Investment Advisor registered under the Investment Advisers Act of 1940 and some of its clients have the right to receive dividends from the securities which it manages, however, no such client has an interest relating to more than five percent of the class to which this Schedule 13G applies. Item 10. Certification. Date: April 10, 2002 SAMUEL R. SHAPIRO Samuel R. Shapiro, in his individual capacity and as president of Shapiro Capital Management Company, Inc.

Cusip No. 960386100 13G Page 7 of 7 Pages AGREEMENT RELATIVE TO THE FILING OF SCHEDULE 13G THIS AGREEMENT, made as of the 10th day of April, 2002, by and between Shapiro Capital Management Company, Inc., a Georgia corporation (an investment adviser registered with under the Section 203 of the Investment Advisers Act of 1940) (the "Adviser"), and Samuel R. Shapiro, president, director and majority shareholder of the Adviser ("Affiliated Person"); WITNESSETH: WHEREAS, the Affiliated Person and the Adviser are both persons required, pursuant to 17 C.F.R.240.13d-1, to file a statement containing the information required by Schedule 13G with respect to the following Issuer: Westinghouse Air Brake Company Cusip No. 960386100 WHEREAS, the Affiliated Person and the Adviser are each individually eligible to use Schedule 13G; and WHEREAS, the Affiliated Person and the Adviser are each responsible for the timely filing of said Schedule 13G and any amendments thereto, and for the completion and accuracy of the information concerning each, but not on the behalf of any other, unless any knows or has reason to know that the information concerning any other is inaccurate; and WHEREAS, the Schedule 13G attached hereto identifies all the persons and contains the required information with regard to the Affiliated Person and the Adviser so that it may be filed with the appropriate persons, agencies and exchanges on behalf of each of them; and WHEREAS, the Affiliated Person and the Adviser desire to file the Schedule 13G attached hereto on behalf of each of them. NOW, THEREFORE, in consideration of the mutual agreements and covenants set forth herein, the parties hereto agree that the Schedule 13G attached hereto shall be executed by the Affiliated Person, in his individual capacity and as president of the Adviser, and filed with the appropriate persons, agencies and exchanges, on behalf of both of them. IN WITNESS WHEREOF, the undersigned have executed this Agreement Relative to the Filing of Schedule 13G as of the day, month and year first above written. SAMUEL R. SHAPIRO Samuel R. Shapiro, in his individual capacity and as president of Shapiro Capital Management Company, Inc.