NGK Laser Iridium Spark Plug Box of 4 (SILZKGR8E8S)

NGK is well-known for making reliable ignition components, and their Laser Iridium spark plugs are a prime example of that. These are designed to be a direct OE replacement, meaning they meet or exceed the original equipment specifications for your vehicle. The fine wire center electrode, made from an iridium alloy, has an extremely high melting point and is six times harder than platinum, which helps ensure a stable spark and offers great durability.

You'll find that the pure alumina silicate ceramic insulator helps with heat transfer, keeping the plug running at the right temperature, while the 98 percent pure copper core aids in heat removal. NGK also uses trivalent metal plating on the threads, which gives them good resistance to corrosion and makes them easier to remove later on. The ground electrode has a platinum pad for even wear, especially in modern distributorless ignition systems, which helps maintain a consistent spark over time.

This set comes with four spark plugs, which is what most modern engines require. They feature triple seals to prevent any leaks, ensuring proper operation. If your vehicle originally came with iridium alloy spark plugs, these are an excellent choice for a replacement.