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PISTON KIT YZF WRF 250 3-RING, WOSSNER 8712DA 08-13 77mm
£145.68 GBP
Taxes included.
Wossner forged piston kit with a 77.00mm bore and 76.96mm diameter, designed for Yamaha YZ250F and WR250F models. This 3-ring piston is engineered for durability and high performance, featuring superior strength and design. Manufactured in Germany, it ensures optimal heat transfer to cylinder walls. Its elliptical design provides a uniform bearing surface under heat expansion, reducing localized pressure and evenly distributing thrust loads to prevent piston collapse.
Features
- Forged construction for superior strength
- Optimized heat transfer for efficient combustion
- Elliptical design for uniform load distribution
- 3-ring piston design for durability
- Manufactured in Germany
Specifications
- Bore: 77.00mm
- Diameter: 76.96mm
- Display (cm³): 249
- Stroke (mm): 53.60
- Clearance (mm): 0.04
- Wossner Compression Ratio: OEM
- OEM Compression Ratio: 13.50:1
- Dome Volume (cm³): -2.90
- Compression Height (mm): 22.20
Cross-Reference OEM Part Numbers
- Wossner Piston Yamaha YZ250F (PN# 8712DA)
- Lock P/N: CW16
- Pin P/N: WP059
- Ring Set P/N: 770XAS-2
- Rod P/N: P4005
Vehicle Fitments
- Yamaha YZ250F (2008-2013)
- Yamaha WR250F (2008-2013)