The WOSSNER Piston Kit in 53.95 mm size is designed for select Yamaha YZ125 and YZ125X models. Manufacturer part number 8321DA. The kit includes a piston, rings, pin and clips.
Constructed from aerospace-grade aluminum alloy, the piston uses optimized machining to reduce weight while maintaining strength in key areas, including the crown and skirt wall cross section. A permanent skirt coating is designed to reduce friction and piston rock for quiet operation and improved performance.
Fitment includes the 2022 Yamaha YZ125, 2022 Yamaha YZ125 Monster Energy Yamaha Racing Edition, 2023 Yamaha YZ125X, 2023 Yamaha YZ125 Monster Energy Yamaha Racing Edition, 2024 Yamaha YZ125X, 2025 Yamaha YZ125, 2025 Yamaha YZ125 Monster Energy Yamaha Racing Edition, 2026 Yamaha YZ125, 2026 Yamaha YZ125X and 2026 Yamaha YZ125 70th Anniversary Edition. Distributor part number: 09106609. Manufacturer part number: 8321DA.
Features:
- Brand: WOSSNER
- Product: Piston kit
- Size: 53.95 mm
- Manufacturer part number: 8321DA
- Kit contents: Piston, rings, pin and clips
- Construction: Forged from aerospace-grade aluminum alloy
- Skirt coating: Permanent coating designed to reduce friction and piston rock
- Machining: Optimized for lightness while maintaining strength in key areas
- Fitment: Select 2022–2026 Yamaha YZ125 and YZ125X models, including specified Monster Energy Yamaha Racing Edition and 70th Anniversary Edition models
- Distributor part number: 09106609
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