Compare Champion Copper Plug Number RN57YCC Spark Plug - 954 Part #: 954 Line: CHP Champion Copper Plug Number RN57YCC Spark Plug 1 Year Limited Warranty Seat: Gasket Thread Size: M14 Heat Range: 57 Hex Size (mm): 20mm Hex Size (in): 13/16 Inch Preset Gap (in): 0.025 Inch Preset Gap (mm): 0.64mm Thread Reach (in): 0.750 Inch Center Electrode Tip Material: Nickel Insulator Height (in): 0.060 Inch Ground Electrode Tip Material: Nickel Service Number: RN57YCC Metallurgy: Copper Show More Show Less
Compare Representative Image Champion Racing Spark Plug - 255 Part #: 255 Line: CHP Champion Racing Spark Plug Manufacturer's Defect Warranty Seat: Gasket Thread Size: M14 Heat Range: 57 Hex Size (mm): 16mm Hex Size (in): 5/8 Inch Preset Gap (in): 0.028 Inch Preset Gap (mm): 0.7mm Thread Reach (in): 0.750 Inch Resistor Plug: No Center Electrode Tip Material: Nickel Insulator Height (in): 1.990 Inch Ground Electrode Tip Material: Nickel Metallurgy: Copper Show More Show Less
Compare Champion Racing Plug Number C57CX Spark Plug - 295 Part #: 295 Line: CHP Champion Racing Plug Number C57CX Spark Plug 2 Year LIMITED WARRANTY Seat: Gasket Thread Size: M14 Heat Range: 57 Hex Size (mm): 16mm Hex Size (in): 5/8 Inch Preset Gap (in): 0.035 Inch Preset Gap (mm): 0.89mm Thread Reach (in): 0.750 Inch Center Electrode Tip Material: Copper Ground Electrode Tip Material: Nickel Service Number: C57CX Metallurgy: Copper Show More Show Less