NGK Standard Spark Plug Box of 10 (BU8H)

The pure 98% copper core in these NGK Standard spark plugs is key to their performance. It offers solid heat dissipation and conductivity, which helps keep the plug at its optimal operating temperature across a wide range of conditions. These are the same kind of plugs you'd find as original equipment on many engines, built with the reliability NGK is known for.

You'll notice the trivalent metal plating on the threads. This isn't just for looks; it gives you superior protection against corrosion and makes them much easier to install and remove, even after they've been in service for a while. The insulator is made from high-grade alumina silicate ceramic, which is strong and helps transfer heat away effectively, while corrugated ribs on the insulator body help prevent flashover. Plus, the triple gasket sealing is there to make sure no combustion gases leak out.

This box includes ten BU8H spark plugs, making it a convenient way to replace all the plugs on your engine at once. They're built for a long service life and consistent performance.