Set of 4 Genuine NGK 4589 IFR6T11 Spark Plug Laser Iridium

Thread Diameter: 14mm
Thread Pitch: 1.25mm
Seat Type: Gasket
Reach: 19mm (3/4")
Hex Size: 5/8" (16mm)
Terminal Type: Solid
Overall Height: ISO
Gap: .043" (1.1mm)
Center Electrode
Material: Iridium
Type: Fine Wire
Size: 1.0mm
Projection: Projected
Ground Electrode
Material: Platinum
Type: Standard
Quantity: 1
Resistor: Yes
Resistor Value: 5k Ohm
Heat Range: 6
Torque Specs: Cast Iron: 18-25.3 lb. ft. Aluminum: 18-21.6 lb. ft.
Electrode Material: Iridium
Insulator Type: Projected
Nominal Gap: 1.1 mm