2003-2005 CHEVROLET TRAILBLAZER EXT 4.2L ENGINE CONTROL MODULE ECM OEM 12573576

2003 Chevrolet Trailblazer EXT ECM Engine Control Module OEM Gold 12573576

2003 Chevrolet Trailblazer EXT Engine Control Module ECM 4.2L OEM Blue 217K

2003-2005 Chevrolet Trailblazer Engine Control Module 12573576 ECU ECM OEM

2003-2005 GMC ENVOY 4.2L AT ENGINE COMPUTER CONTROL MODULE ECM ECU 12574976 OEM

2004 Chevy Trailblazer Engine Control Module Computer Ecu Ecm Pcm 4.2L 12573576

2003-2005 Chevy Trailblazer EXT 4.2L Engine Control Module ECM ECU OEM 12573576

Engine ECM Electronic Control Module 4.2L Fits 2003-2005 GMC ENVOY OEM