NGK Laser Iridium Spark Plug Box of 4 (IFR5T11)

If you're looking to replace your spark plugs on a wide range of vehicles, these NGK Laser Iridium spark plugs are a solid option. They're designed as an OE equivalent replacement, meaning they meet or exceed the original equipment specifications for many cars and trucks. The iridium alloy used in the center electrode is known for its high melting point and extreme hardness, offering significantly better durability compared to platinum, which helps ensure a consistent and stable spark over a longer period.

These plugs also feature a pure alumina silicate ceramic insulator that helps with heat transfer and provides superior strength. For added protection against corrosion and seizing, they come with a trivalent metal plating. Many applications also include a platinum pad on the ground electrode to promote even wear, especially in modern ignition systems. The copper core inside helps to remove excess heat, preventing the plug from overheating, and triple seals are used to prevent any gas leakage.

This box contains four spark plugs, which is the correct amount for most 4-cylinder engines. They are a good choice for vehicles that originally came with fine wire iridium alloy plugs from the factory.