2012 Chevrolet Silverado Sierra 3500 6.6L Ecm 12649719 12648344 AA7X Tuned

11-14 Chevrolet GMC 2500HD DURAMAX 6.6 LML OEM ENGINE COMPUTER ECU ECM 12649719

2012 Chevy Silverado 2500 6.6L ECM ECU Engine Computer OEM 12649719

2012 Chevrolet GMC 6.6L Diesel Engine Computer Module P/N 12649719 OEM

11-14 Chevrolet GMC 2500HD DURAMAX 6.6 LML OEM ENGINE COMPUTER ECU ECM 12649719

2012 Chevrolet GMC 6.6L Diesel Engine Computer Module P/N 12649719 #1331ECM

11-14 Chevrolet GMC 2500HD DURAMAX 6.6 LML OEM ENGINE COMPUTER ECU ECM 12649719