Wossner WO-4092-DB Forged Piston Kit Yamaha YZ450F, WR450F and YZ450FX
Wossner WO-4092-DB Yamaha YZ450F, WR450F & YZ450FX Forged Piston Kit – 13.0:1 Compression
The Wossner WO-4092-DB Forged Piston Kit is a precision graded piston developed for selected Yamaha YZ450F, WR450F and YZ450FX four-stroke motorcycles. Manufactured from premium forged aluminium alloy, it provides excellent strength, piston stability and durability for demanding motocross, cross-country and enduro use.
Featuring a 97.01 mm graded cylinder bore, 96.97 mm piston diameter, 60.80 mm stroke compatibility and a 13.0:1 compression ratio, the WO-4092-DB is intended for accurately measured cylinders requiring the first graded piston size. Its two-ring design, lateral gas porting and permanent skirt coating help provide effective sealing, reduced friction and dependable engine performance.
- Standard Series forged graded piston kit
- Suitable for Yamaha YZ450F 2023–2027
- Suitable for Yamaha WR450F 2024–2026
- Suitable for Yamaha YZ450FX 2024–2026
- 97.01 mm graded cylinder bore
- 96.97 mm piston diameter
- 0.01 mm graded size
- 60.80 mm stroke compatibility
- 13.0:1 compression ratio
- Two-ring piston design
- Lateral gas porting
- Permanent anti-friction skirt coating
- RIK97.00/2 piston ring set
- WP072-SP wrist pin
- CW18 retaining clips
- Includes piston, rings, wrist pin and retaining clips
Important: Always confirm the motorcycle make, model, year and measured cylinder bore before ordering. This graded piston must be selected according to the measured cylinder diameter to achieve the correct piston-to-cylinder clearance. Professional engine assembly is recommended.
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.