Here we have a good used fully functioning engine wiring harness removed from a 2012 GMC Sierra 3500HD with the 6.6L LML Duramax engine. Please just review all of the photos and make sure this part number will work for you before buying. Should fit 11-14 GMC Sierra or Chevrolet Silverado 3500HD and similar models with the same part number only. If unsure, please confirm fitment with your local dealership — confirm part number with your VIN. We specialize in Duramax trucks among other things, so if you’re looking for a hard-to-find part, just send us a message!
