Compare Maximum number of 4 items selected Representative Image NGK Copper Plug Number AP8FS Spark Plug - 2227 Part #: 2227 Line: NGK NGK Copper Plug Number AP8FS Spark Plug 1 Year Limited Warranty Seat: Tapered Thread Size: M18-1.50 Heat Range: 8 Hex Size (in): 13/16 Inch Preset Gap (in): 0.024 Inch Preset Gap (mm): 0.6mm Thread Reach (in): 0.420 Inch Resistor Plug: No Center Electrode Core Material: Copper Center Electrode Tip Material: Nickel Approximate Resistor Value (Ohm): 1 Ohm Insulator Height (mm): 60mm Insulator Height (in): 2.360 Inch Ground Electrode Tip Material: Nickel Thread Reach (mm): 10.9mm Service Number: AP8FS Metallurgy: Copper Show More Show Less