NGK Standard Spark Plugs are the reliable choice for marine engine maintenance, featuring a copper core to promote heat dissipation and more efficient operation. Pre-gapped to your manufacturer's specifications, these plugs utilize a pure alumina silicate ceramic insulator for superior strength and heat transfer. Trivalent metal plating ensures easy removal and protection against the corrosive marine environment.
- Pre-gapped to engine manufacturer’s specifications
- Copper core electrode for efficient spark and heat development
- Trivalent metal plating for superior anti-corrosion and anti-seizing
- Ribbed suppressor seal and triple seal prevent spark "flash over"
- Always replace all spark plugs at the same time for peak performance
