NGK CR8EHIX-9 Iridium Performance spark plug for various makes and models. Please see Supported Models tab for a list of vehicle applications. Iridium IX Spark Plugs offer outstanding acceleration, high fuel efficiency and long life.http://www.ngksparkplugs.com/products/motorcycles/iridiumix.asp?nav=12000&country=US Thread Size: 10mm Reach: 19mm (3/4 inch) Hex Size: 16mm (5/8 inch) Half Thread Type: 12.7mm (1/2 inch) threaded Electrode Diameter: 0.6mm Gap: 0.9mm (.035 inch) Heat Range: 8 Does not include terminal nut
