2006 Chevrolet Trailblazer Engine Control Module ECM OEM 4.2L 166K Miles

2006 06 GMC Envoy XL Trailblazer 4.2L GM Engine Control Module ECM OEM 12597521

2006 GMC Envoy Trailblazer 4.2L Engine Control Module Computer ECM PCM OEM

2007-2008 Chevy Trailblazer Envoy 4.2L GM Engine Control Module ECM OEM 12602010

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

2003-2006 Chevy GMC Trailblazer Envoy ECU ECM Engine Control Module OEM 3699

2006 Chevy Trailblazer 4.2L Engine Computer 12604439 12597521 YMSR ECU Module

2007-2008 Chevy Trailblazer Envoy 4.2L GM Engine Control Module ECM OEM 12602010