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PISTON KIT 01-04 YZF250 79.00, FORGED WOSSER 8559D200 3-RING
£127.28 GBP
Taxes included.
Wossner 79mm Bore Piston Kit (PN# 8559D200) is designed for Yamaha YZ250F and WF250F models from 2001 to 2004. This forged piston offers superior strength and heat transfer efficiency, ensuring optimal performance and durability. Its elliptical design provides a uniform bearing surface under heat expansion, reducing localized pressure and distributing thrust loads evenly to prevent piston collapse. Manufactured in Germany, this piston meets OEM compression standards.
Features
- High-strength forged piston for durability and performance
- Optimized heat transfer to cylinder walls
- Elliptical design prevents piston collapse and ensures even load distribution
- Manufactured in Germany
Specifications
- Bore: 79mm
- Actual diameter: 78.96mm
- Display (cm³): 249
- Stroke (mm): 53.6
- Clearance (mm): 0.04
- Compression Ratio: OEM
- OEM Compression Ratio: 12.50:1
- Dome Volume (cm³): -4.70
- Compression Height (mm): 22.20
- Includes 3 piston rings
Cross-Reference OEM Part Numbers
- Lock: CW16
- Pin: WP059
- Ring Set: 790XAS-2
Vehicle Fitments
- Yamaha YZ250F (2001-2004)
- Yamaha WF250F (2001-2004)