NGK Laser Platinum Spark Plug Box of 4 (PTR5D-10)

This product is a box of four NGK Laser Platinum spark plugs, part number 3784. These plugs are designed to replace your vehicle's original equipment spark plugs, offering improved performance and longevity over standard nickel plugs. They are built with a pure alumina silicate ceramic insulator for strength and heat transfer, and a trivalent metal plating that helps prevent corrosion and seizing. The copper core inside the insulator aids in removing excess heat, and triple seals are used to prevent any leaks.

The Laser Platinum design includes a platinum pad on the ground electrode, which helps ensure even wear, especially in modern distributorless ignition systems. This dual platinum construction contributes to a slow wear rate, which translates to a stable idle, better resistance to fouling, improved fuel efficiency, and lower emissions. These are a solid option for vehicles originally equipped with fine wire platinum alloy spark plugs.