NGK SPARK PLUGS 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