NGK Laser Iridium Spark Plug Box of 4 (ILMAR7E9)

NGK Laser Iridium spark plugs are built to be a direct replacement for your vehicle's original equipment. This particular plug, the ILMAR7E9, uses an iridium alloy on the center electrode, which is much harder than platinum and helps ensure a stable spark over a long time. The pure alumina ceramic insulator is strong and helps transfer heat away from the plug, while the copper core inside also aids in heat removal. For vehicles with distributorless ignition systems, you'll find a platinum pad on the ground electrode to help it wear evenly.

These plugs are well-made with trivalent metal plating to resist corrosion and make them easier to remove later. The fine wire design helps maintain a consistent spark, and the iridium's high melting point makes it suitable for modern engines. They're designed to prevent overheating and ensure reliable starts, making them a solid option for maintaining your engine's performance.