NGK Standard Spark Plugs provide reliable performance for marine engines, featuring a copper core to dissipate heat and ensure more efficient spark development. Pre-gapped to your engine's specific requirements, these plugs utilize high-quality ceramic insulators to resist breakage. Trivalent metal plating protects the threads from corrosion, ensuring they can be easily removed even after a full season of use.
- Pre-gapped to engine manufacturer’s specifications
- Copper core promotes heat dissipation for consistent performance
- Trivalent metal plating prevents corrosion and thread seizing
- Ribbed suppressor seal prevents spark "flash over" and misfires
- Produced to meet Mercury Marine original equipment manufacturer specifications
