Denso Copper Plug Number KJ20CR-L11 Spark Plug - 3169 Part #: 3169 Line: DEN Denso Copper Plug Number KJ20CR-L11 Spark Plug 1 Year Limited Warranty Seat: Gasket Thread Size: M14 Heat Range: 20 Hex Size (mm): 16mm Center Electrode Core Material: Copper Center Electrode Tip Material: Nickel Approximate Resistor Value (Ohm): 5000 Ohm Ground Electrode Tip Material: Nickel Service Number: KJ20CR-L11 Metallurgy: Copper Show More Show Less