Representative Image NGK Copper Plug Number DCPR7E Spark Plug - 3932 Part #: 3932 Line: NGK NGK Copper Plug Number DCPR7E Spark Plug 1 Year Limited Warranty Seat: Gasket Thread Size: M12-1.25 Heat Range: 7 Hex Size (mm): 16mm Hex Size (in): 5/8 Inch Preset Gap (in): 0.032 Inch Preset Gap (mm): 0.8mm Thread Reach (in): 0.750 Inch Center Electrode Core Material: Copper Center Electrode Tip Material: Nickel Approximate Resistor Value (Ohm): 5000 Ohm Insulator Height (mm): 49mm Insulator Height (in): 1.930 Inch Thread Reach (mm): 19mm Service Number: DCPR7E Metallurgy: Copper Show More Show Less