NGK Iridium IX Spark Plug Fits:> 84-00 Evolution 1340 or 75‐84 Shovelhead

Iridium IX Spark Plug Fits:> 84-00 Evolution 1340, or 75‐84 Shovelhead

• 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

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