Piston Kit Gr. II (Size B) for KTM 450 SX-F, Husqvarna FC 450 - A48030007110 II

This is an OEM piston kit Gr. II (Size B) designed for high-performance 450cc MX engines. It includes the piston, rings, pin, and clips for a complete rebuild. Ideal for maintaining engine compression and power in motocross applications.

Compatible with 2026-2022 KTM 450 SX-F (EU/US/BR), 450 SMR (EU), 450 XC-F (US), 450 SX-F Factory Edition (US); Husqvarna FC 450 (EU/US), FC 450 Factory/Rockstar/Heritage Edition (US/EU), FS 450 (EU), FX 450 (EU/US); GASGAS MC 450F (EU/US), MC 450F Factory/Prado Edition (US), EX 450F (US).

Precision-engineered to OEM specifications for reliable fit and durability under extreme racing conditions. Ensures optimal piston-to-cylinder clearance for Size B graded bores.

Professional installation recommended; requires engine disassembly and honing if needed. Always verify bore size before installing Gr. II kit.

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