PISTON KIT 00-06 KTM250 66.40, WOSSNER 8090DB FORGED
Wossner forged piston kit with a 66.40mm bore. Features include forged piston for high strength and durability, optimal combustion chamber heat transfer to the cylinder wall, elliptical profile for consistent bearing surface during expansion, and minimised localised stress to prevent piston collapse under high load. Manufactured in Germany to precise engineering standards. Specifications: Bore 66.41 mm, actual piston size 66.35 mm, stroke 72.00 mm, display volume 249 cm³, clearance 0.06 mm, compression ratio 2-stroke (Wossner and OEM), compression height 38.00 mm. Cross-reference OEM part numbers: Piston Kit 8090DB, Lock CW18, Pin WP033, Ring Set RSB6640. Part No: 56-W774.B.WO.
- SKU
- 56-W774.B.WO
- Brand
- Wossner
- Availability
- In Stock (1)
FULL DESCRIPTION
Wossner Forged Piston Kit - 66.40mm Bore
Upgrade your engine's performance and durability with this Wossner Forged Piston Kit. Engineered for precision and strength, this kit is designed to withstand the rigors of high-performance riding and demanding 2-stroke applications. The forged construction offers superior heat resistance and consistent performance, ensuring your engine runs at its peak.
Key Features:
- Forged piston construction for exceptional strength and longevity.
- Optimized design for efficient combustion chamber heat transfer to the cylinder wall.
- Elliptical piston profile ensures a consistent bearing surface during thermal expansion.
- Engineered to minimize localized stress, preventing piston collapse under extreme loads.
- Manufactured in Germany, adhering to strict engineering and quality standards.
Specifications:
- Bore Size: 66.41 mm
- Actual Piston Diameter: 66.35 mm
- Stroke: 72.00 mm
- Displacement: 249 cm³
- Piston Clearance: 0.06 mm
- Compression Height: 38.00 mm
- Compression Ratio: 2-stroke (Compatible with Wossner and OEM specifications)


