WOSSNER Piston Kit in a 55.95 mm size, manufacturer part number 8321D200. This piston kit is designed for specified Yamaha applications and is made from forged aerospace-grade aluminum alloy for a balance of lightness and strength.
The piston features a permanent skirt coating intended to reduce friction and piston rock for quieter operation and improved performance. Optimized machining helps reduce weight while maintaining strength in key areas, including the crown and skirt wall cross section.
The kit includes the piston, rings, pin and clips. Distributor part number: 09106618. Vehicle fitment includes the 2022 Yamaha YZ125; 2023 Yamaha YZ125 and YZ125X; 2024 Yamaha YZ125, YZ125X and YZ125 50th Anniversary Edition; 2025 Yamaha YZ125 and YZ125X; and 2026 Yamaha YZ125 and YZ125 70th Anniversary Edition.
Features:
- Brand: WOSSNER
- Product: Piston Kit
- Size: 55.95 mm
- Manufacturer Part Number: 8321D200
- Forged aerospace-grade aluminum alloy construction
- Permanent skirt coating helps reduce friction and piston rock
- Optimized machining supports lightness while maintaining strength in key areas
- Kit includes piston, rings, pin and clips
- Vehicle Fitment: 2022 Yamaha YZ125; 2023 Yamaha YZ125 and YZ125X; 2024 Yamaha YZ125, YZ125X and YZ125 50th Anniversary Edition; 2025 Yamaha YZ125 and YZ125X; 2026 Yamaha YZ125 and YZ125 70th Anniversary Edition
Fitment:
2022 Yamaha YZ125
2022 Yamaha YZ125 Monster Energy Yamaha Racing Edition
2023 Yamaha YZ125
2023 Yamaha YZ125 Monster Energy Yamaha Racing Edition
2023 Yamaha YZ125X
2024 Yamaha YZ125
2024 Yamaha YZ125 50th Anniversary Edition
2024 Yamaha YZ125X
2025 Yamaha YZ125
2025 Yamaha YZ125 Monster Energy Yamaha Racing Edition
2025 Yamaha YZ125X
2026 Yamaha YZ125
2026 Yamaha YZ125 70th Anniversary Edition
2026 Yamaha YZ125X