PISTON KIT 14- YZF250 77mm HC, FORGED WOSSNER 8894DB
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Wossner 56-W4962.B.WO Forged Piston Kit. This high-compression piston kit features a 77mm bore and a forged construction for strength and durability. Manufactured in Germany, it is designed for efficient heat transfer and optimal performance with an elliptical profile for uniform expansion and balanced thrust loads. Bore size is 77.01mm with an actual piston size of 76.96mm. Specifications include a displacement of 249cm³, stroke of 53.60mm, clearance of 0.05mm, dome volume of -3.00cm³, Wossner compression ratio of 13.70:1, OEM compression ratio of 13.50:1, and compression height of 20.20mm. Cross-reference OEM part numbers: 1SM-11631-01-00, CW16 (Lock), WP087 (Pin), and 770XAS-2 (Ring Set).
- SKU
- 56-W4962.B.WO
- Brand
- Wossner
- Availability
- In Stock (2)
Fitments (5)
| Make | Model | Year |
|---|---|---|
| YAMAHA | WRF 250 | 2015 |
| YAMAHA | WRF 250 | 2016 |
| YAMAHA | WRF 250 | 2017 |
| YAMAHA | YZF 250 | 2014 |
| YAMAHA | YZF 250 | 2015 |
- General Product Group
- Engine
- General Product Type
- Pistons & Kits
- General Size
- 77mm
- Variant Id
- 256486
FULL DESCRIPTION
Wossner Forged Piston Kit 77mm High Compression
Upgrade your engine's performance with this premium Wossner forged piston kit. Engineered in Germany for superior durability and efficiency, this piston is designed to deliver optimal power and reliable operation for your motorcycle.
Key Features:
- Forged Construction: Provides exceptional strength and high durability for demanding conditions.
- High Compression Design: Enhances engine performance and power output.
- Elliptical Shape: Promotes uniform expansion and balanced thrust loads for smoother operation.
- Efficient Heat Transfer: Designed to effectively manage heat from the combustion chamber, contributing to longevity.
- German Engineering: Manufactured to the highest standards in Germany.
- Direct Replacement: Intended as a direct OEM replacement part for straightforward installation.
- Professional Installation Recommended: While designed for direct replacement, professional installation is advised if you are unsure.
Specifications:
- Bore Size: 77.01mm
- Actual Piston Size: 76.96mm
- Displacement: 249cm³
- Stroke: 53.60mm
- Clearance: 0.05mm
- Dome Volume: -3.00cm³
- Wossner Compression Ratio: 13.70:1
- OEM Compression Ratio: 13.50:1
- Compression Height: 20.20mm
Compatible with:
- Wossner Piston Kit 8894DB
- Cross-Reference OEM Part Numbers: 1SM-11631-01-00
- Includes Lock: CW16
- Includes Pin: WP087
- Includes Ring Set: 770XAS-2
QUESTIONS? JUST ASK
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Check the fitment table on this page against your make, model and year. Not sure? Call or email us and we will check it for you before you order.
Yes. We ship from the UK. Orders ship within 3 working days, then delivery to the United States takes 5–8 business days. The delivery price is shown at checkout before you pay. Delivery details
Yes. You have 14 days from delivery to return it, unused and in its original packaging. Contact us first and we will send you the return instructions. Returns policy
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