Set of 4 Genuine NGK 5044 Spark Plugs Iridium IX BR8EIX

Thread Diameter: 14mm
Thread Pitch: 1.25mm
Seat Type: Gasket
Reach: 19mm (3/4")
Hex Size: 13/16" (21mm)
Terminal Type: Removable Nut
Overall Height: ISO
Gap: .031" (0.8mm)
Center Electrode
Material: Iridium
Type: Fine Wire
Size: 0.6mm
Projection: Non-Projected
Ground Electrode
Material: Nickel
Type: Standard
Shape: Taper Cut
Resistor: Yes
Resistor Value: 5k Ohm
Heat Range: 8
Torque Specs: Cast Iron: 18-25.3 lb. ft. Aluminum: 18-21.6 lb. ft.
Electrode Material: Iridium
Insulator Type: Non-Projected
Nominal Gap: 0.8 mm