NGK Laser Iridium Spark Plug (ILTR7N10)

This is the NGK Laser Iridium spark plug, part number 95856. It's designed to give you a solid combination of performance and how long it lasts. These plugs are built with an iridium-tipped center electrode, which is about six times harder than platinum, giving you excellent durability. The insulator is made from pure alumina silicate ceramic, which offers strong support and helps with heat transfer, while the 98 percent pure copper core helps prevent overheating and ensures reliable starting.

You'll also find a platinum pad on the ground electrode on most of these plugs. This helps them wear evenly, especially in modern ignition systems that don't use a distributor. The fine wire center electrode is key to maintaining a stable spark over time. Because iridium has a very high melting point, it's a great choice for today's advanced engines. The trivalent metal plating on the outside helps prevent corrosion and makes them easier to remove later on.