NGK LFR6A Spark Plug for Outboard Motors

You're mid-run and the engine's surging. You pull over, pop the cowling, and there's a plug that's done its job one season too many. The NGK LFR6A is the replacement that actually holds up in saltwater. Trivalent metal plating means the thread won't seize when you're doing your next service on a muddy bank. Triple seals keep oil out of the combustion chamber and gas out of the threads. Copper core pulls heat away so the top end runs cooler over long hauls. Corrugated ribs stop flashover before it skips to the next cylinder. Alumina silicate ceramic insulator stays solid where cheaper plugs crack and let moisture in. One plug swap, and the surging stops. Add to cart

• Trivalent metal plating for anti-corrosion and anti-seizing in marine environments
• Corrugated ribs prevent flashover between electrodes
• Pure alumina silicate ceramic insulator for structural strength and heat transfer
• Copper core aids in heat removal from the combustion chamber
• Triple seals prevent oil and gas leakage