Compare Maximum number of 4 items selected NGK Laser Platinum Plug Number PZKER7B8EGS Spark Plug - 93231 Part #: 93231 Line: NGK NGK Laser Platinum Plug Number PZKER7B8EGS Spark Plug 1 Year Limited Warranty Seat: Flat Thread Size: M12-1.25 Heat Range: 7 Hex Size (in): 5/8 Inch Preset Gap (in): 0.044 Inch Thread Reach (in): 0.750 Inch Resistor Plug: Yes Center Electrode Core Material: Copper Center Electrode Tip Material: Platinum Approximate Resistor Value (Ohm): 1000 Ohm Insulator Height (mm): 51mm Insulator Height (in): 2.010 Inch Ground Electrode Tip Material: Platinum Thread Reach (mm): 19mm Service Number: PZKER7B8EGS Metallurgy: Double Platinum Show More Show Less