84-864218 HARNESS ASSEMBLY This is a genuine Mercury Marine factory OEM part, not aftermarket. Where Used 8.1L INBOARD - 8.1L INBOARD (H.O.) 496 MAG STERNDRIVE - 496 MAG (H.O. Model) 8.1L INBOARD - 8.1L INBOARD (Base) 496 MAG STERNDRIVE - 496 MAG (Base Model)