NGK Ruthenium HX Spark Plug Box of 4 (LKAR8BHX)

Starting with a 0.4mm Ruthenium alloy fine wire center electrode, these NGK Ruthenium HX spark plugs are built for modern engines that demand high ignitability. This advanced tip technology, combined with a 0.8mm platinum fine wire ground electrode, helps create a more complete fuel burn. This can lead to quicker throttle response, a smoother idle, and better cold starts, making them a solid option for many vehicles like the Nissan 370Z or Infiniti Q50.

The pure alumina silicate ceramic insulator offers superior strength and better heat transfer, while the trivalent metal plating helps resist corrosion and seizing. These plugs are designed with OE DFE and PSPE tip designs, promoting spark energy concentration and igniting a wider range of air-fuel ratios, which is beneficial in both rich and lean engine conditions. The copper core also aids in heat removal, contributing to the overall durability and performance.

These NGK spark plugs are recommended for modern vehicles using OE PSPE type plugs or for those looking for the latest OE technology in an aftermarket part. They fit a wide range of Infiniti and Nissan models, offering an updated ignition solution.