Piston Kit Gr. II (Size B) for KTM 300 EXC/XC 2008-2016 - 55630107010 II

This genuine OEM Piston Kit Gr. II (Size B) is designed to restore the engine performance and compression of your 300cc two-stroke motorcycle. As a complete top-end rebuild solution, it ensures a precise fit and reliable operation within the cylinder. This kit includes the piston, rings, wrist pin, circlips, and necessary gaskets for a comprehensive service.

This kit is compatible with a wide range of models, including the KTM 300 EXC, EXC Six Days, XC, and XC-W from 2008 to 2016. It also fits Husqvarna TE 300 models from 2011 to 2016. Specifically, it covers KTM 300 EXC (2009-2016), KTM 300 XC (2008-2016), KTM 300 XC-W (2008-2016), and Husqvarna TE 300 (2011-2016) including various special editions like the Six Days and Factory Edition.

The Gr. II (Size B) designation indicates a slightly larger diameter than the standard Size A, making it ideal for cylinders that have seen moderate use and require a tighter tolerance. The piston features a high-quality coating to reduce friction and heat, extending the life of your top end. Using OEM parts guarantees that the materials meet the exact specifications required for high-performance racing and trail riding.

When installing this kit, ensure the cylinder bore is clean and measured to confirm the Size B piston is the correct fit. It is recommended to replace the needle bearing and use fresh gaskets provided in the kit to prevent leaks. Proper break-in procedures should be followed to ensure the rings seat correctly against the cylinder wall.

Check compatibility list below to see if this part fits your motorcycle model.