Here we have a used engine wiring harness removed from a 2003 Duramax 6.6 truck with automatic transmission and electric shift transfer case. This is the harness that sits right on the engine, not the one that runs down to the transmission. Fits 03-04 LB7 only. Removed from a running and driving truck and is in very nice shape. Make sure this will work for your application BEFORE purchasing.
