11-K/A

                       SECURITIES AND EXCHANGE COMMISSION
                              WASHINGTON, DC 20549

                                   FORM 11-K/A
                                 AMENDMENT NO. 1

(Mark One)
[X]      ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT
         OF 1934 [NO FEE REQUIRED] FOR THE FISCAL YEAR ENDED DECEMBER 31, 2002
         or

[  ]     TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE
         ACT OF 1934 [NO FEE REQUIRED] for the transition period from
         ______________ to ______________

                           COMMISSION FILE NO. 1-10863

A.       Full title of the plan and the address of the plan, if different from
         that of the issuer named below:

                         YORK INTERNATIONAL CORPORATION
                                 INVESTMENT PLAN

B.       Name of issuer of the securities held pursuant to the plan and the
         address of its principal executive office:

                         YORK INTERNATIONAL CORPORATION
                            631 South Richland Avenue
                            York, Pennsylvania 17403



                                TABLE OF CONTENTS

Explanatory Note

Signature

Exhibit Index

Exhibit 23

Exhibit 99.1



EXPLANATORY NOTE

This Form 11-K/A amends the Form 11-K of the York International Corporation
Investment Plan filed on June 20, 2003 solely for the purpose of including the
Certification attached hereto as Exhibit 99.1



SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the Pension
and Investment Committee has duly caused this annual report to be signed on its
behalf by the undersigned thereunto duly authorized.

                                               YORK INTERNATIONAL CORPORATION
                                               INVESTMENT PLAN

Date: July 1, 2003                             By: /s/ Jane G. Davis
                                               -------------------------
                                               Jane G. Davis
                                               Member, Pension and Investment
                                               Committee



EXHIBIT INDEX



EXHIBIT NO.                    DOCUMENT
- -----------                    --------
                  
   23                Consent of Independent Auditors

   99.1              Certification

EX-23

                                                                      Exhibit 23

                         CONSENT OF INDEPENDENT AUDITORS

The Board of Directors
York International Corporation:

We consent to incorporation by reference in the registration statement (No.
33-73077) on Form S-8 of York International Corporation of our report dated June
4, 2003, relating to the statements of net assets available for benefits of the
York International Corporation Investment Plan as of December 31, 2002, December
29, 2002, and December 29, 2001, the related statements of changes in net assets
available for benefits for the two-day period ended December 31, 2002 and the
years ended December 29, 2002 and December 29, 2001, and the related schedule
as of December 31, 2002, which report appears in the 2002 Annual Report on Form
11-K amended by this Form 11-K/A of the York International Corporation
Investment Plan.

/s/ KPMG LLP

KPMG LLP
Harrisburg, Pennsylvania
July 1, 2003

EX-99.1

                                                                    Exhibit 99.1

                            CERTIFICATION PURSUANT TO
                             18 U.S.C. SECTION 1350
                             AS ADOPTED PURSUANT TO
                  SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Annual Report of the York International Corporation
Investment Plan (the "Plan") on Form 11-K for the two day period ended December
31, 2002 and the year ended December 29, 2002 as filed with the Securities and
Exchange Commission on June 20, 2003 and as amended on the date hereof (the
"Report"), the undersigned Michael R. Young, Chief Executive Officer of York
International Corporation and M. David Kornblatt, Vice President and Chief
Financial Officer of York International Corporation, certify, pursuant to
Section 906 of the Sarbanes-Oxley Act of 2002, 18 U.S.C. Section 1350, that:

(1)      the Report fully complies with the requirements of Section 13(a) or
         15(d) of the Securities Exchange Act of 1934 (15 U.S.C. 78m or 78o(d));
         and

(2)      the information contained in the Report fairly presents, in all
         material respects, the financial condition and results of operations of
         the Plan.

Dated: July 1, 2003

                                      /s/ Michael R. Young
                                      ------------------------------------------
                                      Michael R. Young,
                                      Chief Executive Officer

                                      /s/ M. David Kornblatt
                                      ------------------------------------------
                                      M. David Kornblatt
                                      Vice President and Chief Financial Officer

A signed original of this written statement required by Section 906, or other
document authenticating, acknowledging, or otherwise adopting the signature that
appears in typed form within the electronic version of this written statement
required by Section 906, has been provided to York International Corporation and
will be retained by York International Corporation and furnished to the
Securities and Exchange Commission or its staff upon request.