15 16 Chevrolet GMC 2500HD DURAMAX 6.6 LML OEM ENGINE COMPUTER ECU ECM 12658036

Here we have a good used engine computer removed from a 2015 GMC 2500hd. This should fit the 15-16 trucks with the LML/allison 1000 drivetrain and maybe 11-14 as well. But please confirm fitment with your part number. This will require dealer programming.