PISTON KIT YFM YFB250 71.00, WOSSNER FORGED 8659DA 92-01
Wossner 71mm Bore Forged Piston Kit (Part No. 8659DA) is a high-performance piston designed for Yamaha models. It features a high-strength forged construction, optimized heat transfer for improved combustion efficiency, and an elliptical design for even thrust load distribution. Manufactured in Germany, this piston maintains the OEM compression ratio (9.50:1) for reliable engine performance. Specifications include an actual bore diameter of 70.94mm, displacement of 229cc, stroke of 58.00mm, clearance of 0.06mm, dome volume of -4.70cm³, and compression height of 23.80mm. Includes lock P/N: CW16, pin P/N: WP041, and ring set P/N: 710XDS.
- SKU
- 56-W4675+000.WO
- Brand
- Wossner
- Availability
- In Stock (2)
FULL DESCRIPTION
Wossner 71mm Forged Piston Kit for Yamaha 250cc ATVs
Enhance your ATV's performance and durability with the Wossner 71mm Bore Piston Kit (Part No. 8659DA). This high-performance forged piston is meticulously engineered in Germany for demanding applications, offering superior strength and reliability.
Designed with an elliptical shape, this piston ensures even distribution of thrust loads, minimizing localized pressure and preventing potential piston collapse under stress. Its construction also optimizes heat transfer within the combustion chamber, contributing to improved engine efficiency and longevity. This kit maintains the original equipment manufacturer (OEM) compression ratio for seamless integration and consistent engine operation.
Key Features:
- Premium forged piston construction for maximum strength
- Engineered elliptical design for balanced load distribution
- Optimized heat transfer for efficient combustion
- Manufactured to exacting standards in Germany
- Maintains OEM compression ratio for reliable performance
Technical Specifications:
- Bore Size: 71.00mm
- Actual Bore Diameter: 70.94mm
- Compression Ratio: OEM (9.50:1)
- Displacement: 229cc
- Stroke: 58.00mm
- Piston Clearance: 0.06mm
- Dome Volume: -4.70cm³
- Compression Height: 23.80mm
Included Components:
- Lock Piston Pin Retainer (Lock P/N: CW16)
- Piston Pin (Pin P/N: WP041)
- Ring Set (Ring Set P/N: 710XDS)
