I pulled this engine out of a 2005 GMC Topkick 7500. Either the head is cracked or the injector seals/cups are leaking. Oil was leaking into the fuel return and going into the fuel tank. Engine includes on engine harness, ECM, turbo and stand. Engine is missing the front vibration dampener, flywheel, alternator, ac compressor, a few coolant lines and the dipstick tube has been cut. I have a forklift and can help load it onto a truck or trailer.