ACDelco Professional Series Copper Core Conventional Spark Plugs are an economical choice for solid performance. Product Features:Has a 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 foulingPrecisely engineered and manufactured to provide everyday reliability and efficient performanceThe hot-tip insulator heats fast and fires hotThe nickel-chrome alloy on the ground electrode and center electrode sheathing resists wear from spark erosion and the corrosive environment of the combustion chamber
