NGK Laser Iridium Spark Plug (ILFR6G-E)

NGK Laser Iridium spark plugs are a solid option for replacing your worn-out plugs, offering a good balance of performance and how long they last. These are built to meet original equipment specs, meaning they're tested to high standards for dependability. The center electrode uses an iridium alloy, which is much harder than platinum, giving it a long life. The ceramic insulator is made from pure alumina silicate, helping with heat transfer and giving it strength, while the copper core helps prevent overheating and ensures reliable starts. Most of these plugs also have a platinum pad on the ground electrode to help them wear evenly, especially in modern ignition systems.

The fine wire center electrode is key here, as it helps maintain a consistent spark over time. Iridium has a very high melting point, making it well-suited for today's engines. For installation, you'll find the trivalent metal plating on the threads helps prevent corrosion and makes them easier to remove later on. These are recommended for vehicles that originally came with fine wire iridium alloy plugs.