Wossner WO-4085-DA Forged Piston Kit Yamaha YZ450F, WR450F and YZ450FX
Wossner WO-4085-DA Premium Series Forged Three-Ring Piston Kit for Yamaha YZ450F, WR450F & YZ450FX – 97.00 mm
The Wossner WO-4085-DA Forged Piston Kit is a Premium Series three-ring piston engineered for the latest Yamaha YZ450F, WR450F and YZ450FX four-stroke engines. Manufactured from premium forged aluminium, it features a precision three-ring design that delivers excellent sealing, durability and long service life for motocross, enduro and cross-country applications. :contentReference[oaicite:0]{index=0}
Featuring a 97.00 mm standard cylinder bore, 96.96 mm finished piston diameter, 60.80 mm stroke compatibility, 24.00 mm compression height and a 13.0:1 compression ratio, the WO-4085-DA is supplied complete with piston rings, wrist pin and retaining clips for a complete top-end rebuild. :contentReference[oaicite:1]{index=1}
- Premium Series forged three-ring piston kit
- Suitable for Yamaha YZ450F 2023–2026
- Suitable for Yamaha WR450F 2024–2026
- Suitable for Yamaha YZ450FX 2024–2026
- 97.00 mm standard cylinder bore
- 96.96 mm finished piston diameter
- 0.04 mm piston-to-cylinder clearance
- 60.80 mm stroke compatibility
- 24.00 mm compression height
- 13.0:1 compression ratio
- Three-ring piston design
- RIK97.00 piston ring set
- WP072-SP wrist pin
- CW18 retaining clips
- Includes piston, piston rings, wrist pin and retaining clips
Important: Always confirm your motorcycle make, model, year and measured cylinder bore before ordering. Professional measurement and assembly are recommended to achieve the correct piston-to-cylinder clearance.
Notice: Product images may differ from the actual product. Images are provided for illustration purposes only and may show a representative item rather than the exact part supplied.