13 14 Chevrolet GMC 2500HD DURAMAX 6.6 LML OEM ENGINE COMPUTER ECU ECM 12654088

Here we have a good used engine computer removed from a 2013 GMC 2500hd. This should fit the 13-14 trucks with the LML engine and maybe even earlier ones. But please confirm fitment with your part number. This will require dealer programming.