NGK Laser Platinum Spark Plug Box of 4 (PTR5C-13)

The pure alumina silicate ceramic insulator in these NGK Laser Platinum spark plugs is a key feature, offering superior strength and better heat transfer to keep the plug performing reliably. This design helps prevent overheating, which is crucial for consistent starts and stable idling. They're built with a platinum pad on the ground electrode, designed for even wear in modern ignition systems, contributing to a longer service life compared to conventional nickel plugs.

You'll also find a trivalent metal plating on these plugs, which helps resist corrosion and makes them easier to remove down the road, preventing seizing. The copper core inside aids in removing excess heat, and the corrugated ribs on the insulator are there to prevent flashover, ensuring a strong spark. These are a solid option for many vehicles, especially those originally equipped with fine wire platinum alloy plugs, offering improved fuel efficiency and lower emissions.

This set comes with four spark plugs, enough for most 4-cylinder engines, and they fit a wide range of vehicles from brands like Buick, Cadillac, Chevrolet, and Ford. Always check the fitment guide to confirm they're the right match for your specific car or truck.