The WOSSNER Piston Kit 96.96 mm, manufacturer part number 4092DA, is designed for select Yamaha motorcycle applications. The kit includes a piston, rings, pin and clips. It is forged from aerospace-grade aluminum alloy and features optimized machining for reduced weight while maintaining strength in key areas, including the crown and skirt wall cross section.
A permanent skirt coating helps reduce friction and piston rock for quiet operation and improved performance. This piston kit fits the 2025 Yamaha WR450F, 2025 Yamaha YZ450FX, 2024 Yamaha YZ450F, 2026 Yamaha YZ450F, 2024 Yamaha WR450F, 2024 Yamaha YZ450FX, 2023 Yamaha YZ450F, 2025 Yamaha YZ450F, 2026 Yamaha YZ450FX and 2024 Yamaha YZ 450 F Monster Energy. Distributor part number: 09106841. Manufacturer part number: 4092DA.
Features:
- Brand: WOSSNER
- Product: Piston Kit
- Size: 96.96 mm
- Manufacturer part number: 4092DA
- Kit contents: Piston, rings, pin and clips
- Material: Forged 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 2023–2026 Yamaha WR450F, YZ450F, YZ450FX and 2024 Yamaha YZ 450 F Monster Energy models as listed
Fitment:
2023 Yamaha YZ450F
2024 Yamaha WR450F
2024 Yamaha YZ 450 F Monster Energy
2024 Yamaha YZ450F
2024 Yamaha YZ450FX
2025 Yamaha WR450F
2025 Yamaha YZ450F
2025 Yamaha YZ450FX
2026 Yamaha WR450F
2026 Yamaha YZ450F
2026 Yamaha YZ450FX