NGK (6953) BKR5E-11 V-Power Spark Plug, Pack of 1 Designed to operate over a much wider heat range than ordinary plugs Resists carbon buildup and pre-ignition High alumina ceramics for better heat transfer and electrical insulation Solid copper core and nickel tipped electrode provide a longer plus life Patented triple gasket sealing process eliminates the possibility of combustion gas leakage You can depend on NGK for quality and reliability Trivalent Metal Plating has superior anti-corrosion and anti-seizing properties Highly durable against electrical and chemical wear Consistent performance Better fuel economy and lower emissions