Spark plug set 816761Q4 is for use on V8 MerCruiser (LH) engines (305 and 350 CID) with Thunderbolt IV ignition systems. These wires are tailored to reach the correct plug locations and are designed for efficiency and endurance in a marine environment.
- Complete set of spark plug wires with boots at spark plug end
- Tailored to reach the correct plug location for V8 MerCruiser (LH) engines
- Designed for efficiency, endurance and durability
- Fits select 1981-1992 V8 MerCruiser engines
