Piston Kit Gr. II (Size B) for KTM 450 SX-F/EXC 2021-2023 - 00050000272

This is an OEM piston kit featuring a high-performance piston, circlips, needle bearing, wrist pin, and complete top-end gasket set including base, head, and exhaust gaskets. It ensures reliable compression and sealing for optimal engine performance in motocross and enduro applications. Designed for precise fit and durability under extreme conditions.

Compatible with 2023 Husqvarna FE 450 (US), FE 450 Heritage (US); 2023 GasGas EX 450F (US), EX 450F BT (US), MC 450F (EU), MC 450F BT (EU); 2022 KTM 450 SMR (EU), 450 SX-F (EU/US), 450 XC-F (US); 2022 Husqvarna FC 450 (EU/US), FS 450 (EU), FX 450; 2022 GasGas EX 450F (US), MC 450F (EU), MC 450F Troy Lee Designs (EU); 2021 KTM 450 SMR (EU), 450 SX-F (EU/US), 450 XC-F (US); 2021 Husqvarna FC 450 (EU/US), FS 450 (EU), FX 450 (US); 2021 GasGas EX 450F (US), MC 450F (EU).

Gr. II (Size B) specification for engines requiring this oversized piston. Kit includes all necessary seals and hardware for a complete top-end rebuild. Manufactured to OEM standards for exact replacement.

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