NGK BR9HS-10 Spark Plug for Outboard Motors

Your outboard's been misfiring on the backwater and the idle's rougher than it should be. You don't need a new engine. You need the right plug in the right seat. The NGK BR9HS-10 is built for exactly this job. Trivalent metal plating shrugs off saltwater corrosion and keeps the thread from seizing on your next service. Triple seals keep oil where it belongs and gas where it should burn. The copper core pulls heat out of the combustion chamber so the engine runs cooler between runs. Corrugated ribs stop flashover before it fouls the next plug. Pure alumina silicate ceramic holds up where cheap insulators crack after a season. One swap, and that rough running's gone. Add to cart and get back on the water

• Trivalent metal plating resists saltwater corrosion and prevents thread seizing
• Corrugated ribs stop flashover between electrodes
• Pure alumina silicate ceramic insulator for strength and efficient heat transfer
• Copper core aids heat removal from the combustion chamber
• Triple seals prevent oil and gas leakage