Iridium Spark Plugs by NGK Spark Plug - R0409B-8 - 7791

Iridium Spark Plugs by NGK Spark Plug - R0409B-8 - 7791

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.