NGK Ruthenium HX Spark Plug Box of 4 (LTR6BHX)

In this box, you're getting four NGK Ruthenium HX spark plugs, part number LTR6BHX. These are designed for modern vehicles that need a high-performance plug, especially those that originally came with PSPE type plugs. They feature NGK's patented Ruthenium technology, which uses an advanced tip design for better ignitability and a longer lifespan than standard plugs.

The Ruthenium center electrode, at just 0.4mm, works with a 0.8mm platinum ground electrode to concentrate spark energy. This helps achieve a more complete fuel burn, which can lead to a quicker throttle response, a smoother idle, and easier cold starts. The ceramic insulator is made from pure alumina silicate for strength and good heat transfer, while the trivalent metal plating helps prevent corrosion and seizing. Plus, the corrugated ribs on the insulator are there to stop flashover, and the copper core helps pull heat away from the plug tip.

These plugs are a solid option for a wide range of vehicles, including many Ford, Chevrolet, and Buick models. They're built to handle the demands of newer engines that require high ignitability, offering an updated approach to ignition performance.