OEM Piston Kit Gr. I (Size A) for KTM/Husqvarna/GasGas 300 2023-2026 - A45030007010 I

This genuine OEM Piston Kit Gr. I (Size A) is a complete top-end rebuild solution designed for high-performance 300cc two-stroke engines. The kit includes a precision-engineered piston, high-quality rings, a wrist pin, circlips, and a comprehensive gasket set to ensure a perfect seal. As an original factory part, it guarantees the exact tolerances and material quality required to maintain your engine's power and reliability.

This kit is compatible with a wide range of 300cc models from 2023 to 2026. It fits KTM 300 EXC, SX, XC, and XC-W models, including the Champion Edition, HardEnduro, and Six Days versions. It also fits Husqvarna TE 300, TX 300, and TC 300 models (including Pro and Heritage editions), as well as GasGas EC 300, EX 300, and MC 300 models. This kit is specifically designed for the latest TBI (Throttle Body Injection) engine platforms.

The piston features a specialized low-friction coating to reduce heat and wear, extending the service life of your cylinder. Using a Gr. I (Size A) piston is critical when your cylinder bore remains within the original factory diameter specifications. Replacing your piston at recommended intervals helps restore compression, improves throttle response, and prevents costly engine damage.

For the best results, ensure all mating surfaces are thoroughly cleaned before installing the new gaskets and O-rings. We recommend following the manufacturer's torque specifications and using high-quality two-stroke lubricant during the assembly process. Regular top-end maintenance is essential for keeping your motorcycle performing at its peak on the track or trail.

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