4 1 jlo0203.txt UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 ------------------------------------------------------------------------------ FORM 4 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP / / Check box if no longer subject of Section 16. Form 4 or Form 5 obligations may continue. See instruction 1(b). Filed pursuant to Section 16(a) of the Securities Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(f) of the Investment Company Act of 1940 1. Name and Address of Reporting Person JEFFREY OBERMAYER 200 S. Michigan Ave. Chicago, IL 60604 2. BorgWarner Inc. (BWA) 3. IRS Identification Number of Reporting Person, if an Entity (Voluntary) - 4. Statement For Month/Year FEBRUARY 5, 2003 5. If Amendment, Date of Original (Month/Year) 6. Relationship of Reporting Person to Issuer (Check all applicable) ( ) Director (x) Officer (give title below) ( ) 10% Owner ( ) Other Vice President & Treasurer 7. Individual or Joint/Group Filing (Check applicable line) /x/ Form Filed by One Reporting Person --- Form Filed by More Than One Reporting Person

Signature of Reporting Person /s/ Laurene H. Horiszny as attorney-in-fact for JEFFREY OBERMAYER Date: February 5, 2003

OBERMAYER JEFFREY 4