This listing is for part number 12635043 ECM that is programmed/flashed for your vehicle with the newest updates from GM using your VIN to match your vehicle. After you purchase the ECM you will need to provide us with your VIN so we can program the ECM before we ship it to you. This ECM is compatible with the following service numbers 12635043 12639471 12653246
This part will fit these makes and models with these options
SAVANA 1500 VAN 10-14 Electronic Control Module; (LH rear engine compartment), 4.3L
SILVERADO 1500 PICKUP 10-13 Electronic Control Module; (LH front under battery), 4.3L
EXPRESS 1500 VAN 10-14 Electronic Control Module; (LH rear engine compartment), 4.3L
SIERRA 1500 PICKUP 10-13 Electronic Control Module; (LH front under battery), 4.3L
SILVERADO 1500 PICKUP 10-13 Electronic Control Module; (LH front under battery), 4.3L
EXPRESS 1500 VAN 10-14 Electronic Control Module; (LH rear engine compartment), 4.3L
SIERRA 1500 PICKUP 10-13 Electronic Control Module; (LH front under battery), 4.3L