NGK Laser Iridium Performance Spark Plugs 4477

Ultra-Accurate Spark. The Laser Iridium plug series from NGK are the plugs that set the standard for performance. With an ultra-fine center diode that is precisely the right diameter - not too thick, not too thin - these premium plugs deliver maximum durability and plug life while generating the strongest, most accurate spark of any plug on the market. The Laser Iridium series has been designed for the truck enthusiast who wants nothing but the very best, by the very best - NGK.

Superior to Other Premium Plugs.  NGK's IX plugs feature their fine-wire design, which reduces demand on your ignition system by reducing the amount of voltage required to generate a spark. Plus, this innovative design means this plug has a higher resistance to fouling compared to traditional plugs. It's a great choice for both stock and high-compression, high-revving engines - and starts more easily in cold climates, too.

Rare Iridium. 6 times harder than platinum, Iridium is one of the world's rarest metals - but its unique properties, including an exceptionally high melting point, allow NGK engineers to create this top-of-the-line plug - and make it a natural choice in any high-performance vehicle.

OEM Quality. NGK is one of the premier manufacturers of spark plugs worldwide. All NGK plugs are made with a solid copper core, to ensure greater spark and heat transfer. Plus they use a triple gasket sealing process to eliminate the potential for combustion gas to leak back through the shell - superior to other manufacturer's one or two shell design. And their double dipped zinc chromate shell is designed for maximum corrosion and rust resistance.