Set of 4 Genuine Denso 5343 IKH16 Spark Plug Iridium Power

Shell
Thread Diameter: 14mm
Thread Pitch: 1.25mm
Seat Type: Gasket
Reach: 26.5mm (1.04")
Hex Size: 5/8" (16mm)
Terminal Type: Solid
Overall Height: ISO
Gap: .043" (1.1mm)

Center Electrode
Material: Iridium
Type: Fine Wire
Size: 0.4mm
Projection: Projected

Ground Electrode
Material: Nickel
Type: U-Groove
Shape: Taper Cut

Specifications
Resistor: Yes
Resistor Value: 5k Ohm
Heat Range: 16
Torque Specs: Cast Iron: 26-30 lb. ft. Aluminum: 15-22 lb. ft.