PISTON KIT 87-90 TRX250 66.50, WOSSNER 8189D050 HONDA ATV
Wossner forged piston kit for Honda ATC250R and TRX250R models, featuring an oversize bore of 66.50 mm (+0.50 mm). This piston is crafted for high-performance 2-stroke engines and provides superior heat management and structural integrity. The elliptical piston shape helps ensure uniform expansion and reduces localised stress, improving durability during demanding operation. Manufactured in Germany to precise specifications. High-strength forged piston design. Enhanced combustion chamber heat transfer to cylinder walls. Elliptical shape for consistent bearing surface under heat expansion. Developed specifically for 2-stroke engines. Manufactured in Germany. Bore: 66.50 mm. Actual Bore Diameter: 66.44 mm. Compression Height: 33.00 mm. Display Volume: 246 cm³. Stroke: 72.00 mm. Clearance: 0.06 mm. Compression Ratio: 2-stroke (Wossner and OEM). Piston Kit Part No.: 8189D050. Lock P/N: CW18. Pin P/N: WP033. Ring Set P/N: RSB6650 (x2). Rod P/N: P2042. Alternate Part No.: 56-W562.P2.WO.
- SKU
- 56-W562.P2.WO
- Brand
- Wossner
- Availability
- In Stock (1)
Fitments (19)
| Make | Model | Year |
|---|---|---|
| HONDA | ATC R 250 | 1985 |
| HONDA | ATC R 250 | 1986 |
| HONDA | CR 250R | 1984 |
| HONDA | CR 250R | 1985 |
| HONDA | TRX 250 | 1987 |
| HONDA | TRX 250 | 1988 |
| HONDA | TRX 250 | 1989 |
| HONDA | TRX 350 | 2000 |
| HONDA | TRX 350 | 2001 |
| HONDA | TRX 350 | 2002 |
| HONDA | TRX 350 | 2003 |
| HONDA | TRX 350 | 2004 |
| HONDA | TRX 350 | 2005 |
| HONDA | TRX 350 | 2006 |
| HONDA | TRX R 250 | 1985 |
| HONDA | TRX R 250 | 1986 |
| HONDA | TRX R 250 | 1987 |
| HONDA | TRX R 250 | 1988 |
| HONDA | TRX R 250 | 1989 |
- General Product Group
- Engine
- General Product Type
- Pistons & Kits
- General Size
- 66.5mm
- Variant Id
- 256860
FULL DESCRIPTION
Wossner Forged Piston Kit - Enhanced Performance for Your ATV
Upgrade your ATV's engine with the Wossner Forged Piston Kit, engineered for high-performance 2-stroke applications. This precision-crafted piston offers superior heat management and exceptional structural integrity, ensuring optimal performance under demanding conditions. Its advanced elliptical design promotes uniform expansion and reduces stress concentration, leading to enhanced durability and longevity.
Key Features:
- High-strength forged piston construction for maximum durability.
- Optimized for efficient combustion chamber heat transfer to cylinder walls.
- Elliptical piston shape ensures a consistent bearing surface, even with heat expansion.
- Specifically developed and manufactured in Germany for 2-stroke engines.
Technical Specifications:
- Bore Size: 66.50 mm
- Actual Bore Diameter: 66.44 mm
- Compression Height: 33.00 mm
- Displacement Volume: 246 cm³
- Stroke: 72.00 mm
- Piston Clearance: 0.06 mm
- Compression Ratio: Designed for 2-stroke (Wossner and OEM compatibility)
Included Components:
- Piston Kit Part Number: 8189D050
- Lock Ring Part Number: CW18
- Piston Pin Part Number: WP033
- Ring Set Part Number: RSB6650 (quantity of 2)
- Connecting Rod Part Number: P2042
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