Denso IK31 Iridium Power Spark Plug (5321)

Denso IK31 iridium power spark plugs (5321). Price is for one spark plug. Please adjust quantity as needed. May fit more vehicles, please confirm specs and part numbers before purchase.

Vehicle Fitment:
Unknown

Specs:
Part Number: IK31
Stock Number: 5321
Heat Range: 31
Thread Size: 14mm
Hex Size: 16mm
Electrode Tip Material: Iridium
Electrode Core Material: Nickel

Purchase Includes:
Price is for one spark plug. Please adjust quantity as needed.

More Info:
Denso Iridium Power spark plugs feature a 0.4mm 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.

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