Here we have a used chassis wiring harness removed from a 2017 GMC 3500hd CREW cab short box with the L5P 6.6 Duramax and 4wd transmission. This is the harness that runs from the front fuse box down the frame all the way to the back. This is used, but removed from a running and driving truck. This will fit 17-19 trucks with the LML engine and auto 4wd transmission ONLY but please compare it to your existing harness plugs or via VIN to ensure its the one you need, these are non returnable. if you need any parts just inquire.
