07-10 DURAMAX 6.6L LMM CHEVY 3500 ECU ECM ENGINE COMPUTER 12604137 12588335 OEM

Part Number 0 281 020 122 and 12628641 - You must match this exactly! Tech Notes ECU tested and does have communication and a properly functioning processor! Fitment/Interchange You must match your part number exactly as seen above. If any numbers are off compared to your original it will not work properly. At the time of purchase please supply your VIN for programming. You will need to complete a 30 minute key relearn and we'll send those instructions with your order. Ecu will fit 2007 to 2010 GM Chevy 6.6L LMM diesel models with an exact part number match. Item Condition Pins perfect, none are broken or bent Warranty This ECM comes with a 90 day warranty from the date of purchase. Please keep a copy of your purchase record which we will send with your item.