ACDelco M42K Distributor Rotor

Replacing the Distributor Rotor on your vehicle? The ACDelco M42K is a direct replacement with the fit of an Original Equipment part.

ACDelco Conventional Spark Plug, M42K: 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