Quicksilver 8M0220181 - Spark-plug wire kit for marine enginesKeep your MerCruiser sterndrive or inboard engine on the water and running strong with this premium replacement spark plug wire kit.Key Product Features Fits MerCruiser 496 Mag and HO sterndrive engines and MerCruiser 8.1L and HO (2000 and newer) inboard engines; Premium spark plug wires validated for marine duty; Individual spark plug wires available; use 84-888740 for cylinder 1, 2, 7 and 8; use 84-888741 for cylinder 3, 4, 5 and 6; Application Information:Fits MerCruiser 496 Mag and HO sterndrive engines and MerCruiser 8.1L and HO (2000 and newer) inboard engines