NGK's legendary high grade alumina silicate ceramic creates a stronger insulator for optimal dielectric performance, while triple gasket sealing prevents combustion gas leakage. Solid 98 percent pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges.

NGK Standard Series spark plugs are designed for stock replacement applications. These plugs have a hotter spark, which means better combustion—and that improves performance, while producing less harmful emissions. They're available in a variety of options for both universal and specific vehicle applications.

NGK spark plugs. Resistor type long thread plugs. These use 14mm threads and are the LONG thread resistor type version. Select your temperature from the drop down - we have BR6ES, BR7ES, and BR8ES. Use BR6ES for stockers and BR7ES or BR8ES for kitted bikes.

As the largest supplier and manufacturer of spark plugs and oxygen sensors for import and domestic vehicles, we are the industry experts you can count on. With rigorous testing standards and countless first to market technologies, NGK, NTK as leaders in innovation.

Find the NGK Spark Plug at Dennis Kirk. Shop our complete selection of Dirt Bike Motorcycle Snowmobile parts and accessories including the NGK Spark Plug.

NGK's legendary high grade alumina silicate ceramic creates a stronger insulator for optimal dielectric performance, while triple gasket sealing prevents combustion gas leakage. Solid 98 percent pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges.