Electrical Resistance: 5k Ohms Heat Range: 9 Spark Gap Metric: 0.8 mm Electrode Tip Material: Nickel Alloy Ground Electrode Shape: Standard Spark Gap Imperial: 0.031" Thread Reach: 19,1 mm (3/4") Hex Size: 14,3 mm (9/16") Style: MAR9A-J Type: Resistor Type Thread Size: 10 mm Product Name: Spark Plug Terminal Configuration: Solid Terminal Units: Each Center Electrode Projection: Non-Projected Center Electrode Type: Standard Ground Electrode Configuration: Double Spark Gap: 0,8 mm (0,031") Model: Standard