NGK Iridium/Platinum Spark Plug (IFR6T-11)

This is a box of four NGK Iridium/Platinum spark plugs, part number IFR6T-11. These plugs are designed to be a direct OE replacement, meaning they are built to the same specifications as the original plugs that came with your vehicle. They are a solid option for a wide range of cars, including many Lexus, Toyota, Scion, and Pontiac models.

The center electrode on these plugs uses an iridium alloy, which has a very high melting point and is six times harder than platinum. This construction helps ensure a stable spark and offers improved durability over standard platinum plugs. The pure alumina ceramic insulator helps with heat transfer, and the trivalent metal plating on the exterior helps prevent corrosion and seizing, making them easier to remove down the road. Most of these plugs also include a platinum pad on the ground electrode for even wear, which is especially beneficial in modern ignition systems.

Because these are designed as OE replacements, they fit right in without any modifications. The copper core helps manage heat, and triple seals are used to prevent any leaks. If your vehicle originally came with fine wire iridium or platinum plugs, these NGK plugs are a great choice to keep your engine running smoothly.