NGK Racing Spark Plug Box of 4 (R7420-10) 5501

Part Number: R7420-10 Resistance: 5000.0 Ground Electrode Tip Design: Pin Type Ground Configuration: Slant Ground Electrode Core Material: Platinum Center Electrode Core Material: Copper Center Electrode Tip Material: Iridium Pre-Gap Size: .028 Ground Electrode Quantity: 1 Hex Size: 13/16 Insulator Height: 67.00 Manufacturer Heat Range: 10 Seat Type: Flat Reach: 21.5 Thread Diameter: 14.00 Electrical Terminal Type: Non-Removable Nut