Engine Computer Programmed Plug&Play 2004 GMC Sierra 1500 12586242 5.3L ECM PCM

2005 Sierra 1500 5.3L Motor Engine Control Module ECM ECU PCM PCU Unit OEM WTY

Engine Computer Programmed Plug&Play 2004 Chevy Tahoe 12586242 5.3L ECM PCM OEM

03-06 Chevrolet Silverado Sierra 5.3L Engine Computer ECU ECM 12586242 12583660

Engine Computer Programmed Plug&Play 2004 GMC Yukon Denali 12586242 6.0L ECM PCM

2004 GMC Yukon Denali 6.0 4l65e ECM Engine Control Module 12586242 12587672

2003 2004 GMC Yukon Engine Computer Control Module ECM ECU 12586242

2004 Envoy 5.3L Engine computer 12586242 "Programmed to your VIN" ECM PCM ECU