Iridium IX Racing Spark Plugs

The ultimate in the evolution of spark plug technology and performance from the industry leader

The iridium electrode is 25% smaller than a platinum electrode, and it's just 1/4 the size of a conventional nickel electrode

Ultra-small diameter center electrode reduces voltage requirement and extends ignition system life

New metal shell plating has enhanced anti-corrosion qualities

Thread Reach: 19,1 mm (3/4 inch)
Electrical Resistance: 5k Ohms
Ground Electrode Shape: Standard
Product Name: Spark Plug
Hex Size: 16 mm (5/8 inch)
Units: Each
Ground Electrode Configuration: Single
Model: Racing
Center Electrode Type: Fine Wire
Heat Range: 8
Electrode Tip Material: Iridium
Terminal Configuration: Solid Terminal
Thread Size: 10 mm