Compare Champion Copper Plug Number RDZ19H Spark Plug - 940 Part #: 940 Line: CHP Champion Copper Plug Number RDZ19H Spark Plug 1 Year Limited Warranty Seat: Tapered Thread Size: M10 Heat Range: 19 Hex Size (mm): 15mm Hex Size (in): 5/8 Inch Preset Gap (in): 0.022 To 0.028 Inch Thread Reach (in): 0.500 Inch Resistor Plug: Yes Center Electrode Tip Material: Nickel Insulator Height (in): 0.030 Inch Ground Electrode Tip Material: Nickel Service Number: RDZ19H Metallurgy: Copper Show More Show Less
Compare Champion Plug Number QJ19HX Spark Plug - 861ECO Part #: 861ECO Line: CHP Champion Plug Number QJ19HX Spark Plug 1 Year Limited Warranty Seat: Gasket Thread Size: M14 Heat Range: 19 Hex Size (mm): 21mm Preset Gap (in): 0.025 Inch Thread Reach (in): 0.375 Inch Resistor Plug: Yes Center Electrode Tip Material: Nickel Insulator Height (in): 0.030 Inch Ground Electrode Tip Material: Nickel Service Number: QJ19HX Metallurgy: Copper Show More Show Less
Compare Champion Plug Number RJ19HX Spark Plug - 973 Part #: 973 Line: CHP Champion Plug Number RJ19HX Spark Plug 1 Year Limited Warranty Seat: Gasket Thread Size: M14 Heat Range: 19 Hex Size (mm): 20mm Hex Size (in): 13/16 Inch Preset Gap (in): 0.027 To 0.031 Inch Preset Gap (mm): 0.7mm To 0.8mm Thread Reach (in): 0.375 Inch Resistor Plug: Yes Center Electrode Tip Material: Nickel Insulator Height (in): 0.030 Inch Ground Electrode Tip Material: Nickel Service Number: RJ19HX Metallurgy: Copper Show More Show Less