Compare Champion Copper Plug Number H12 Spark Plug - 512 Part #: 512 Line: CHP Champion Copper Plug Number H12 Spark Plug 1 Year Limited Warranty Seat: Gasket Thread Size: M14 Heat Range: 12 Hex Size (mm): 20mm Hex Size (in): 13/16 Inch Preset Gap (in): 0.030 Inch Preset Gap (mm): 0.78mm Thread Reach (in): 0.438 Inch Center Electrode Tip Material: Nickel Ground Electrode Tip Material: Nickel Service Number: H12 Metallurgy: Copper Show More Show Less
Compare Champion Copper Plug Number H8C Spark Plug - 587 Part #: 587 Line: CHP Champion Copper Plug Number H8C Spark Plug 1 Year Limited Warranty Seat: Gasket Thread Size: M14 Heat Range: 8 Hex Size (mm): 20mm Hex Size (in): 13/16 Inch Preset Gap (in): 0.025 Inch Preset Gap (mm): 0.64mm Thread Reach (in): 0.438 Inch Center Electrode Tip Material: Nickel Ground Electrode Tip Material: Nickel Service Number: H8C Metallurgy: Copper Show More Show Less
Compare Champion Industrial Plug Number H14Y Spark Plug - 91 Part #: 91 Line: CHP Champion Industrial Plug Number H14Y Spark Plug 1 Year Limited Warranty Seat: Gasket Thread Size: M14 Heat Range: 14 Hex Size (mm): 20mm Hex Size (in): 13/16 Inch Preset Gap (in): 0.035 Inch Preset Gap (mm): 0.91mm Thread Reach (in): 0.438 Inch Center Electrode Tip Material: Nickel Insulator Height (in): 0.060 Inch Ground Electrode Tip Material: Nickel Service Number: H14Y Metallurgy: Copper Show More Show Less