NGK Multi-Ground Spark Plug Box of 4 (PFR7W-TG)

This product is a box of four NGK Multi-Ground Spark Plugs, model PFR7W-TG. These are designed to replace your vehicle's original spark plugs, offering high ignitability and a longer service life than standard nickel plugs. They are built to meet specific manufacturer ignition requirements, ensuring they work correctly with your car's system.

The Laser Platinum design includes a platinum pad on the ground electrode, which helps it wear evenly, especially in modern distributorless ignition systems. The multi-ground electrodes themselves improve ignition capabilities and are less affected by the increased voltage needed as the gap grows over time. Inside, a pure alumina silicate ceramic insulator provides strength and helps transfer heat away from the plug, while a copper core aids further in heat removal. Triple seals are used to prevent any leaks.

These plugs are a solid option for vehicles originally equipped with platinum alloy multi-ground electrode plugs, like many Audi models. They aim to provide stable idling, better fuel efficiency, and lower emissions.