14 | NGK GR9DI-8 Spark Plug Wrist Pin Each bumper or component sold

Each bumper or component sold separately

Check out the image gallery for the technical dimensions

and is ideal for most applications or 'green' race tracks for most racing karts

Clear plastic reservoir bottle replacements are available on request

14 | NGK GR9DI-8 Spark Plug Wrist Pin Each bumper or component soldNGK GR9DI 8 Spark Plug for Rotax Max Evo Kart Engines. This spark plug is one of (2) legal spark plugs for Rotax USMRC competitions and operation. The NGK GR9DI 8 is designed to run in slightly cooler temperatures or denser air, and is considered a 'hotter' plug (burns hotter) than the GR8 DI. Note: Always check with your local Rotax regulations and competition rule set prior to running any spark plug with your Rotax! These are a tech item, so be sure