Set of 8 NGK 92274 Ruthenium HX Spark Plugs LKAR7AHXS

Shell
Thread Diameter: 12mm
Thread Pitch: 1.25mm
Seat Type: Gasket
Reach: 26.5mm (1.04")
Hex Size: 9/16" (14mm)
Terminal Type: Solid
Gap: .043" (1.1mm)

Center Electrode
Material: Ruthenium
Type: Fine Wire
Size: 0.6mm
Projection: Projected

Ground Electrode
Material: Platinum
Type: Fine Wire

Specifications
Resistor: Yes
Resistor Value: 5k Ohm
Heat Range: 7
Features: Special Gasket
Torque Specs: Cast Iron: 10.8-18 lb. ft. Aluminum: 10.8-14.5 lb. ft.