2011-2014 Chevrolet Silverado GMC Sierra 6.6L Duramax ECU ECM PCM 12644941

11-14 Chevrolet GMC 2500HD DURAMAX 6.6 LML OEM ENGINE COMPUTER ECU ECM 12644941

Engine Computer Programmed Plug&Play 2011 GMC Savana 2500 12644941 AA1U 6.6L ECM

11-14 Chevrolet GMC 2500HD DURAMAX 6.6 LML OEM ENGINE COMPUTER ECU ECM 12644941

2011 GM 2500-3500 6.6L Diesel Electronic Control Module, ID 12644941

11-14 Chevrolet GMC 2500HD DURAMAX 6.6 LML OEM ENGINE COMPUTER ECU ECM 12644941