NGK Laser Platinum Spark Plug Box of 4 (PLKR7A)

NGK Laser Platinum spark plugs are a solid choice when you need to replace the plugs in a wide range of vehicles, including many Mercedes-Benz models like the C300 or E350, and Dodge or Freightliner Sprinter vans. These plugs are built with dual platinum surfaces, which means they wear down much slower than standard nickel plugs. This slow wear rate helps maintain a stable idle, improves fuel efficiency, and can lead to lower emissions over their service life.

The construction here is well-built, featuring a pure alumina silicate ceramic insulator that offers strong support and helps manage heat effectively. For protection against corrosion and to make sure they don't seize in the cylinder head, NGK uses a trivalent metal plating. Inside, a copper core helps draw heat away, preventing the plug from overheating, and the triple seals are there to prevent any leaks. These are recommended for vehicles that originally came with OE fine wire platinum alloy plugs, ensuring a direct match for your car's ignition system.