2003 - 2007 Hummer H2 Engine ECM Electronic Control Module

Engine Computer Programmed Plug&Play 2003 Chevy Avalanche 1500 89017750 5.3L ECM

Engine Computer Programmed Plug&Play 2003 Chevy Avalanche 1500 12589463 5.3L ECM

Engine Computer Programmed Plug&Play 2003 Chevy Avalanche 1500 12602802 5.3L ECM

03-06 Avalanche 5.3L Engine Electrical ECU ECM Control Module Computer PCM PCU

Engine Computer Programmed Plug&Play 2003 Chevy Avalanche 1500 89017734 5.3L ECM

Engine Computer Programmed Plug&Play 2003 Chevy Tahoe 89017734 5.3L ECM PCM OEM

Engine Computer Programmed Plug&Play 2003 Chevy Silverado 1500 12589463 5.3L ECM