This premium spark plug set is engineered with nickel alloy electrodes and a durable copper core to provide increased conductivity and superior heat removal. Validated for high-performance marine environments, these plugs resist corrosion and ensure reliable operation across a wide range of Mercury and Mariner V6 outboards. Quicksilver spark plugs deliver the premier performance needed to keep your engine running strong.
- Fits a wide range of Mercury/Mariner V-135 through V-300 models (see application list)
- Nickel alloy electrodes resist corrosion for an extended lifespan
- Copper core increases conductivity and aids in heat removal
- Includes a set of four (4) high-quality Quicksilver spark plugs
- Tested to ensure reliable operation in demanding marine conditions
