Quicksilver 33-889246Q39 NGK ILFR6GE Spark PlugQuicksilver replacement NGK ILFR6GE spark plug for Mercury outboards. NGK Trivalent metal plating provides superior anti-corrosion in marine environments and anti-seizing for easier removal.Check your engine and maintenance manual for the correct spark plug and only use as recommended by your engine's original equipment manufacturer. Using the wrong plug can reducing optimum performance, reduce fuel economy or cause damage to your engine.Features Fine Wire Platinum Tipped Center Electrode for enhanced durability and slow wear; Copper core with ribbed suppressor seal for long service life and misfire prevention; NGK Trivalent metal plating for superior corrosion resistance and easy removal; Pre-gapped to manufacturer specifications for optimal engine performance; Pure alumina silicate ceramic insulator for strength and heat transfer efficiency; Sold individually