Compare Denso Copper Spark Plug - 5020 Part #: 5020 Line: DEN Denso Copper Spark Plug 1 Year Limited Warranty Seat: Tapered Thread Size: M14 Heat Range: 14 Hex Size (mm): 16mm Preset Gap (mm): 0.9mm Center Electrode Core Material: Copper Center Electrode Tip Material: Nickel Approximate Resistor Value (Ohm): 5000 Ohm Thread Reach (mm): 12mm Metallurgy: Copper Show More Show Less
Compare Denso Copper Spark Plug - 5021 Part #: 5021 Line: DEN Denso Copper Spark Plug 1 Year Limited Warranty Seat: Tapered Thread Size: M14 Heat Range: 14 Hex Size (mm): 16mm Preset Gap (mm): 1.5mm Center Electrode Core Material: Copper Center Electrode Tip Material: Nickel Approximate Resistor Value (Ohm): 5000 Ohm Thread Reach (mm): 12mm Metallurgy: Copper Show More Show Less