2005-2006 GMC Sierra Engine Computer ECU ECM PCM OEM 12589463/12589162

2005-2006 GMC Sierra Engine Computer Module ECM ECU 12589463 12589162 OEM

2005 2006 Hummer H2 OEM Engine Control Module Computer 12589463

2005 2006 Sierra Engine computer 12589463 "Programmed to your VIN" ECM

2006 GMC Sierra 1500 5.3L Engine Computer Module P/N 12589463 OEM

12589463 GMC Sierra Engine Computer ECM 2005-2006 VIN Programmed Plug&Play

2003 2004 2005 2006 GM Silverado Sierra Yukon Engine Computer Module 12589463