07-10 DURAMAX 6.6L LMM CHEVY 3500 ECU ECM ENGINE COMPUTER 12609441 HAS COMM

Part Number 12609441 and service number 12609441 - You must match this exactly! Tech Notes ECU tested and does have communication and a properly functioning processor! **NOTE** These units are typically surged and burned up due to a mechanical or wiring issue in the vehicle. Make sure all other mechanical issues/wiring/connectors/ground points are checked prior to installing this replacement or there is a good chance it will be blown up as well. 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. A crank and/or throttle relearn may be required as well. 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 / Core Refund 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. If you would like to send your core back for a $40 partial refund let us know and we'll include a prepaid label for your old unit. Once it comes in we'll issue the partial refund. It's thate easy to get money back!