Dependable performance. This Champion spark plug features a copper core electrode that provides increased conductivity and heat control for good overall wear.
Resistor: YesElectrode Type: OEMElectrode Core Material: Nickel Copper AlloyElectrode Tip Material: Nickel Copper AlloyInsulator Type: OEMThread Size (IN): 0.551 InchQuantity: SingleReach: 3/8 InchSeat Type: GasketWrench Diameter: 13/16 Inch