Piston Kit Gr. II (Size B) for KTM 500 EXC-F, Husqvarna FE 501 - 79730107110 II

This is an OEM piston kit Gr. II (Size B) for 500cc enduro motorcycles. It includes the piston, rings, pin, and clips for a complete rebuild. Designed for reliable performance and precise fit in high-demand enduro engines.

Compatible with KTM 500 EXC-F (EU/US, 2020-2026 including Six Days, Champion, XCF-W, XW-F models), Husqvarna FE 501 (EU/US, 2020-2026 including Heritage, s models), and GASGAS EC 500F/ES 500/EW 500F (EU/US, 2024-2025). Fits all listed 500cc enduro variants from these brands across the specified years.

Manufactured to OEM specifications for durability and optimal compression. Ideal for engine refreshes or oversize replacements in worn cylinders.

Professional installation recommended; ensure cylinder honing matches Grade II sizing.

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