07-10 DURAMAX 6.6L LMM CHEVY 3500 ECU ECM ENGINE COMPUTER 12609441 HAS COMM GM ABS VIDEO * Pins perfect

* Pins perfect

If any backlighting goes out in this time

5U7A-12A650-CVA

Please use the part number provided to verify fitment with your dealer/mechanic if unsure prior to purchase 2002 to 2004 GMC Envoy and Chevy Trailblazer models with the DIC ODO display

56041427AC

07-10 DURAMAX 6.6L LMM CHEVY 3500 ECU ECM ENGINE COMPUTER 12609441 HAS COMM GM ABS VIDEO * Pins perfectPart 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