Wossner WO-4085-DA Forged Piston Kit Yamaha YZ450F, WR450F and YZ450FX
Wossner WO-4085-DB Premium Series Forged Three-Ring Piston Kit for Yamaha YZ450F, WR450F & YZ450FX – 97.01 mm
The Wossner WO-4085-DB Forged Piston Kit is a Premium Series graded three-ring piston designed for Yamaha YZ450F, WR450F and YZ450FX four-stroke engines. Manufactured from premium forged aluminium, it provides exceptional strength, excellent oil control and reliable performance in demanding motocross and off-road conditions. :contentReference[oaicite:2]{index=2}
Featuring a 97.01 mm graded cylinder bore, 96.97 mm finished piston diameter, 60.80 mm stroke compatibility, 24.00 mm compression height and a 13.0:1 compression ratio, the WO-4085-DB is intended for engines requiring the first graded piston size. :contentReference[oaicite:3]{index=3}
- Premium Series forged graded three-ring piston kit
- Suitable for Yamaha YZ450F 2023–2026
- Suitable for Yamaha WR450F 2024–2026
- Suitable for Yamaha YZ450FX 2024–2026
- 97.01 mm graded cylinder bore
- 96.97 mm finished piston diameter
- 0.01 mm graded size
- 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. Select the graded piston according to the measured cylinder size to achieve the specified 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.