NGK Laser Iridium Spark Plug (SILZKFR8G7S)

The iridium-tipped center electrode on these NGK Laser Iridium spark plugs is six times harder than platinum, offering excellent durability and a consistently stable spark. This advanced material choice is perfect for today's high-tech engines, ensuring reliable ignition performance. The pure alumina silicate ceramic insulator not only provides superior strength but also aids in heat transfer, helping to prevent overheating.

NGK builds these plugs with a 98 percent pure copper core, which is crucial for removing excess heat from the combustion chamber, and features trivalent metal plating for strong resistance against corrosion and seizing. For vehicles with distributorless ignition systems, the raised platinum pad on the ground electrode ensures even wear and improved spark performance over time. These are direct OE replacement plugs, meaning they meet or exceed the original equipment specifications for your vehicle.

This box includes four spark plugs, which is the correct quantity for most 4-cylinder engines. The triple seals are designed to prevent any leakage, ensuring proper operation. If your vehicle originally came with OE iridium alloy spark plugs, these NGK plugs are a recommended replacement to maintain optimal engine function.