Denso 5345 IKH22 Iridium Power Spark Plug

Denso Iridium power spark plugs feature a 0.4 mm iridium tipped laser welded fine wire center electrode that reduces required voltage and improves firing performance. Tapered cut U-Groove ground electrode increases ignitability and decreases quenching. Machine rolled threads prevent seizing or cross threading during installation and removal. 100% pre-fired to assure the highest quality possible. Purified alumina powder insulator provides exceptional strength and thermal conductivity. Five rib insulator prevents flashover. Copper-glass seal bonds center electrode and insulator for a gas-tight seal.

Thread Diameter: 14 mm
Thread Pitch: 1.25 mm
Seat Type: Gasket
Reach: 26.5 mm
Hex Size: 5/8 in
Terminal Type: Solid
Gap: 0.31 in
Center Electrode Material: Iridium
Center Electrode Type: Fine Wire
Center Electrode Size: 0.4 mm
Center Electrode Projection: Projected
Ground Electrode Material: Nickel
Ground Electrode Type: U-Groove
Resistor: Yes
Heat Range: 22
Ground Electrode Shape: Taper Cut
Resistor Value: 5 kohm
Torque Specs: Cast Iron: 26-30 lb-ft, Aluminum: 15-22 lb-ft
Shell Overheight: ISO