PISTON KIT 00-06 KTM250 66.40, WOSSNER 8090DA FORGED
Wossner 8090DA forged piston kit with a 66.40mm bore size. Features forged piston construction for superior strength and durability. Optimised for effective heat transfer from the combustion chamber to the cylinder wall. The elliptical design maintains a consistent bearing surface under thermal expansion and distributes thrust loads evenly to minimise localised stress and prevent piston collapse. Made in Germany with high-precision manufacturing. Specifications include: Bore 66.40 mm, Actual piston size 66.34 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 8090DA, Lock CW18, Pin WP033, Ring Set RSB6640, Part No: 56-W774.A.WO, 774M06640. Weight 300g.
- SKU
- 56-W774.A.WO
- Brand
- Wossner
- Availability
- In Stock (1)
Fitments (19)
| Make | Model | Year |
|---|---|---|
| KTM | 250 EXC | 2000 |
| KTM | 250 EXC | 2001 |
| KTM | 250 EXC | 2002 |
| KTM | 250 EXC | 2003 |
| KTM | 250 EXC | 2004 |
| KTM | 250 EXC | 2005 |
| KTM | 250 EXC | 2006 |
| KTM | 250 MXC | 2000 |
| KTM | 250 MXC | 2001 |
| KTM | 250 MXC | 2002 |
| KTM | 250 MXC | 2003 |
| KTM | 250 MXC | 2004 |
| KTM | 250 MXC | 2005 |
| KTM | 250 SX | 2000 |
| KTM | 250 SX | 2001 |
| KTM | 250 SX | 2002 |
| KTM | 250 SXS | 2000 |
| KTM | 250 SXS | 2001 |
| KTM | 250 SXS | 2002 |
- General Product Group
- Engine
- General Product Type
- Pistons & Kits
- General Size
- 66.40mm
- Variant Id
- 257732
FULL DESCRIPTION
Wossner Forged Piston Kit - 66.40mm Bore
Enhance the performance and durability of your engine with this Wossner forged piston kit. Designed for high-performance applications, this kit features a 66.40mm bore and is constructed using advanced forging techniques for superior strength and heat resistance.
Key Features
- Forged Construction: Provides exceptional strength and durability, capable of withstanding extreme operating conditions.
- Optimized Heat Transfer: Engineered for efficient heat management, ensuring optimal temperature regulation within the combustion chamber and cylinder wall.
- Elliptical Design: Maintains a consistent bearing surface even under thermal expansion, promoting smoother operation and reduced wear.
- Even Thrust Load Distribution: Minimizes localized stress and prevents piston collapse by distributing thrust loads uniformly.
- High-Precision Manufacturing: Made in Germany, guaranteeing exacting standards and reliable performance.
Specifications
- Bore: 66.40 mm
- Actual Piston Size: 66.34 mm
- Stroke: 72.00 mm
- Displacement Volume: 249 cm³
- Piston Clearance: 0.06 mm
- Compression Ratio: Compatible with 2-stroke (Wossner and OEM) configurations
- Compression Height: 38.00 mm
Component Details
- Piston Kit Reference: 8090DA
- Lock Type: CW18
- Piston Pin: WP033
- Ring Set: RSB6640
- Wossner Part Number:
- Manufacturer Part Equivalent: 774M06640
Trade pricing available
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