2003-2006 Silverado Tahoe Yukon Sierra Engine Computer ECU ECM PCM 12589463 YHZS

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

Silverado 2005 2006 Engine Computer PCM ECM 12589463 - Requires GM Programming

Silverado 2005 2006 Engine Computer PCM ECM 12589463 - Programmed to your VIN

2005 2006 Silverado Engine computer 12589463 "Programmed to your VIN" ECM PCM

Engine Control Module/ECU/ECM/PCM-Computer Micro-Tech 59-5610

Engine Control Module/ECU/ECM/PCM-Computer Micro-Tech 59-6458

2005-2007 CHEVY SILVERADO 4.8L ENGINE COMPUTER PROGRAMMED ECM PCM 12589463