Wossner WO-4093-DA Forged Piston Kit amaha WR450F, YZ450F and YZ450FX
Wossner WO-4093-DA Yamaha WR450F, YZ450F & YZ450FX Forged Piston Kit – 13.5:1 Compression
The Wossner WO-4093-DA Forged Piston Kit is engineered for selected Yamaha WR450F, YZ450F and YZ450FX four-stroke motorcycles. Manufactured from premium forged aluminium and precision CNC machined, this Pro Series piston delivers excellent strength, stability and durability for demanding motocross, enduro and cross-country applications.
Featuring a 97.00 mm standard bore, 96.96 mm piston diameter, 0.04 mm piston-to-cylinder clearance and a 13.5:1 Wossner compression ratio, the WO-4093-DA is designed for accurate fitment and dependable high-performance operation. Its double-bridge forging, 3D crown, two-ring design and gas-ported construction provide strength, efficient sealing and improved combustion performance.
- Suitable for Yamaha WR 450 F 2024–2025
- Suitable for Yamaha YZ 450 F 2023–2025
- Suitable for Yamaha YZ 450 FX 2024
- Pro Series forged piston
- 97.00 mm standard bore
- 96.96 mm piston diameter
- 0.04 mm recommended piston-to-cylinder clearance
- 60.80 mm stroke
- 24.00 mm compression height
- 13.5:1 Wossner compression ratio
- Double-bridge forging
- 3D piston crown
- Two-ring piston design
- Gas-ported construction
- RIK97.00/2 piston ring set
- WP072-SP wrist pin
- 18 mm wrist pin diameter
- CW18 retaining clips
- Includes piston, piston rings, wrist pin and retaining clips
Important: Always confirm the motorcycle make, model, year and measured cylinder bore before ordering. The cylinder must be accurately measured and the correct graded piston selected to achieve the specified 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.