NGK Laser Iridium Spark Plug (SILZKR8E8G)

When it's time to replace your spark plugs, especially on modern vehicles with sophisticated ignition systems, you want a plug that offers both reliable starting and long-term performance. These NGK Laser Iridium spark plugs are built for that job, offering a stable spark and excellent durability to keep your engine running smoothly.

The center electrode on these plugs uses an iridium alloy, which has a very high melting point and is six times harder than platinum, meaning it holds up well over time. NGK also adds a platinum pad to the ground electrode, which helps ensure even wear, especially in distributorless ignition systems, and contributes to a consistent spark. The pure alumina silicate ceramic insulator is strong and helps transfer heat away from the plug, while the 98 percent pure copper core further aids in heat removal. Plus, the trivalent metal plating on the threads helps prevent corrosion and makes them easier to remove down the road.

This set comes with four plugs, which is what most 4-cylinder engines will need. They are designed as a direct replacement for your original equipment iridium plugs, so they should fit right in without any modifications.