NGK Laser Iridium Spark Plug Box of 4 (IFR6B)

The center electrode on these NGK Laser Iridium spark plugs is tipped with an iridium alloy, which has a melting point six times harder than platinum. This makes them a durable choice for many modern engines. They are designed as an OE replacement, meaning they meet the original equipment specifications for a wide range of vehicles, including models like the Dodge Neon, Volvo S60, and Subaru Impreza. The pure alumina silicate ceramic insulator helps with heat transfer and provides strength, while the trivalent metal plating on the exterior helps prevent corrosion and seizing, making them easier to remove later.

NGK also includes a platinum pad on the ground electrode for even wear, especially in distributorless ignition systems. The pure copper core inside helps dissipate heat, preventing the plug from overheating and ensuring reliable starts. These plugs are a solid option if your vehicle originally came with fine wire iridium alloy plugs.