Compare Champion Copper Plug Number QL77JC4 Spark Plug - 828-1 Part #: 828-1 Line: CHP Champion Copper Plug Number QL77JC4 Spark Plug 2 Year LIMITED WARRANTY Seat: Gasket Thread Size: M14 Heat Range: 77 Hex Size (mm): 20mm Thread Reach (in): 0.500 Inch Center Electrode Tip Material: Copper Ground Electrode Tip Material: Nickel Service Number: QL77JC4 Metallurgy: Copper Show More Show Less
Compare Champion Copper Spark Plug - 931S Part #: 931S Line: CHP Champion Copper Spark Plug 1 Year Limited Warranty Seat: Flat Thread Size: M14 Heat Range: 82 Hex Size (mm): 20mm Hex Size (in): 13/16 Inch Preset Gap (in): 0.037 To 0.043 Inch Preset Gap (mm): 0.94mm To 1.09mm Thread Reach (in): 0.500 Inch Resistor Plug: Yes Center Electrode Tip Material: Copper Ground Electrode Tip Material: Nickel Show More Show Less
Compare Champion Copper Plug Number QL77CC Spark Plug - 941-1 Part #: 941-1 Line: CHP Champion Copper Plug Number QL77CC Spark Plug 1 Year Limited Warranty Seat: Gasket Thread Size: M14 Heat Range: 77 Hex Size (mm): 20mm Hex Size (in): 13/16 Inch Preset Gap (in): 0.035 Inch Preset Gap (mm): 0.9mm Thread Reach (in): 0.500 Inch Center Electrode Tip Material: Copper Ground Electrode Tip Material: Nickel Service Number: QL77CC Metallurgy: Copper Show More Show Less