The NGK Standard copper core spark plug provides OEM quality, consistent performance and extended long life. Product Features:Trivalent Metal Plating Provides Superior Anti-Corrosion and Anti-Seizing PropertiesCorrugated Ribs Prevent FlashoverPure Alumina Silicate Ceramic Insulator, Provides Superior Strength and Better Heat TransferCopper Core Aids in Heat RemovalTriple Seals Prevent Leakage
