ACDelco Conventional Spark Plug, CS42S

ACDelco Professional Conventional Spark Plugs are an economical choice for solid performance. The copper-core center electrode that helps provide improved heat transfer to the tip, giving you the reliability you're looking for while improving its resistance to low-speed carbon fouling. Precisely engineered and manufactured to provide everyday reliability and efficient performance.

ACDelco Conventional Spark Plug, CS42S: Copper-core center electrode helps improve heat transfer to plug tip for reliable spark and improved resistance to low-speed carbon fouling Nickel-chrome alloy ground electrode and center electrode sheathing resist wear from spark erosion and corrosive combustion chamber environment Precisely engineered and manufactured to provide everyday efficient performance Hot-tip insulator heats fast and fires hot delivering consistent combustion