Reddit reviews NGK (2120) D8EA Standard Spark Plug, Pack of 1

Designed to operate over a much wider heat range than ordinary plugsResists carbon buildup and pre-ignitionHigh alumina ceramics for better heat transfer and electrical insulationSolid copper core and nickel tipped electrode provide a longer plus lifePatented triple gasket sealing process eliminates the possibility of combustion gas leakageFit type: Vehicle SpecificSolid copper core for greater sparkLonger insulator nose prevents foulingCorrugated ribs on insulator prevents flashoverZinc dipped shell prevents corrosionTriple gasket seal eliminates combustion gas leakage