NGK Spark Plugs 6853 Spark Plug - BPR9EIX. These Spark Plugs from NGK Spark Plugs are designed to handle a much wider heat range than regular spark plugs. The heat range allows these NGK Spark Plugs spark plugs to resist carbon buildup and ignition. The high alumina ceramics allow better heat transfer and electrical insulation ensuring the spark plugs will hold up in challenging conditions. The patented triple gasket sealing process of these NGK Spark Plugs spark plugs eliminates the possibility of combustion gas leakage greatly enhancing the safety of your driving experience. Also these spark plugs feature a longer insulator nose which prevents fouling and misfiring due to internal corrosion. Drive your engine to new heights with the power of these NGK Spark Plugs BPR9EIX spark plugs in your next engine swap. Features of NGK Spark Plugs 6853/5100.5737 6853 Spark Plug - BPR9EIX 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 Package Contents: NGK Spark Plugs 6853/5100.5737 6853 Spark Plug - BPR9EIX NGK Spark Plugs 6853/5100.5737: 6853 Spark Plug - BPR9EIX