This is a “Main Boat Harness” used on many older ski boats prior to 2000. This 16′ harness connects the engine to the dash panel and comes with a wiring diagram.
Note: Both ends are the rectangular 8 pin plugs, one w/ male pins, one with female pins
If you are chasing electrical gremlins between the engine and dash you may be in need of a replacement harness, especially if your boat has ever held water that has flooded the bilge for sustained periods of time. Most ski boat run this harness below the floor from the engine to the dash.
