NGK Spark Plug,5/8& Hex Sz,0.551& Thread

Spark Plug; Application Automotive; Hex Size 5/8 in; Thread Size 0.551 in; Thread Reach 0.75 in; Ground Electrode Quantity 1; Ground Electrode Tip Design Standard; Gap Size 0.016 in; Resistor Plug Yes; Hex Size - Metric 15.88 mm; Thread Reach - Metric 19.05 mm; Insulator Material Ceramic; Manufacturer Heat Range 5; Seat Type Flat; Center Electrode Diameter 0.098 in; Ground Electrode Material Nickel Core; Center Electrode Material Nickel; Package Quantity 4