NGK Laser Platinum Spark Plug Box of 4 (PFR5N-11)

With a pure alumina silicate ceramic insulator, these NGK Laser Platinum spark plugs are built for strength and effective heat transfer. They are designed to be a direct OE replacement, meaning they are engineered specifically for the original equipment applications on a wide range of Hyundai and Kia vehicles, including models like the Hyundai Elantra, Kia Optima, and Hyundai Tiburon. The dual platinum surfaces on both the center and ground electrodes are laser-welded, which significantly slows wear. This slow wear rate helps maintain stable idling, offers superior resistance to fouling, and contributes to improved fuel efficiency and lower emissions over time.

Beyond the dual platinum, these plugs feature a trivalent metal plating that helps prevent corrosion and makes them easier to remove later on. The corrugated ribs on the insulator are there to prevent flashover, a type of electrical discharge that can cause misfires. A copper core is also integrated to help dissipate heat, preventing the plug from overheating. To ensure a leak-free installation, NGK incorporates triple seals. These are the best choice if your vehicle originally came with OE fine wire platinum alloy plugs.