NGK B7HS-10 Spark Plug – Outboard Motor

Engine's misfiring in the salt and you're tired of pulling plugs every trip? The B7HS-10 is built for exactly that. Trivalent metal plating shrugs off corrosion, triple seals keep your oil where it belongs, and the copper core pulls heat away so your plug doesn't wash itself out. Thread it in, start the motor, done

• Trivalent metal plating – resists saltwater corrosion and seizing
• Corrugated ribs prevent flashover under load
• Pure alumina silicate ceramic insulator for strength and heat transfer
• Copper core aids heat removal from the electrode
• Triple seals prevent oil and coolant leakage
• Designed for outboard motor applications