Set of 6 Genuine NGK 91276 LTR6AHX Ruthenium HX Spark Plugs

ShellThread Diameter: 14mmThread Pitch: 1.25mmSeat Type: TaperedReach: 25mm (1")Hex Size: 5/8" (16mm)Terminal Type: SolidGap: .043" (1.1mm) Center ElectrodeMaterial: RutheniumType: Fine WireSize: 0.6mmProjection: Projected Ground ElectrodeMaterial: PlatinumType: Fine Wire SpecificationsResistor: YesResistor Value: 5k OhmHeat Range: 6Torque Specs: Cast Iron: 10.8-18 lb. ft. Aluminum: 7.2-14.5 lb. ft.