PISTON KIT 04-09 CRF250 HC 78, FORGED WOSSNER 8590DA, 13101-KRN-670
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Wossner 78.00mm high-compression forged piston kit with a 13.90:1 compression ratio for enhanced engine performance. Engineered for optimal heat transfer, it ensures efficient cooling of the combustion chamber. The elliptical design provides a uniform bearing surface, reducing localized pressure and distributing thrust loads evenly to prevent piston collapse. Manufactured in Germany for precision and reliability. Bore Size: 77.96mm. Displacement: 249 cm³. Stroke: 52.20mm. Clearance: 0.04mm. Dome Volume: +0.00 cm³. Compression Height: 19.00mm. Lock Part Number: CW16. Pin Part Number: WP059. Ring Set Part Number: 780XAS. Rod Part Number: P4001. Cross-Reference OEM Part Numbers: 13101-KRN-670. Wossner Part Number: 8590DA.
- SKU
- 56-W4852.A.WO
- Brand
- Wossner
- Availability
- In Stock (1)
Fitments (20)
| Make | Model | Year |
|---|---|---|
| HONDA | CRF 250R | 2004 |
| HONDA | CRF 250R | 2005 |
| HONDA | CRF 250R | 2006 |
| HONDA | CRF 250R | 2007 |
| HONDA | CRF 250R | 2008 |
| HONDA | CRF 250R | 2009 |
| HONDA | CRF 250X | 2004 |
| HONDA | CRF 250X | 2005 |
| HONDA | CRF 250X | 2006 |
| HONDA | CRF 250X | 2007 |
| HONDA | CRF 250X | 2008 |
| HONDA | CRF 250X | 2009 |
| HONDA | CRF 250X | 2010 |
| HONDA | CRF 250X | 2011 |
| HONDA | CRF 250X | 2012 |
| HONDA | CRF 250X | 2013 |
| HONDA | CRF 250X | 2014 |
| HONDA | CRF 250X | 2015 |
| HONDA | CRF 250X | 2016 |
| HONDA | CRF 250X | 2017 |
- General Product Group
- Engine
- General Product Type
- Pistons & Kits
- General Size
- 78mm
- Variant Id
- 256271
FULL DESCRIPTION
Wossner High-Compression Forged Piston Kit - 78.00mm
Upgrade your engine's performance with this Wossner high-compression forged piston kit. Engineered for durability and optimal power output, this piston kit is designed to meet the demands of high-performance riding.
Key Features:
- High Compression Design: Delivers increased engine power and responsiveness.
- Forged Construction: Provides superior strength, durability, and resistance to extreme pressures and temperatures.
- Optimized Heat Transfer: Features an advanced design for efficient cooling of the combustion chamber, ensuring consistent performance.
- Elliptical Design: Promotes a uniform bearing surface, which reduces localized pressure and distributes thrust loads evenly to prevent piston collapse.
- Precision Manufacturing: Made in Germany to exacting standards for reliability and a perfect fit.
Specifications:
- Bore Size: 78.00mm
- Actual Bore Diameter: 77.96mm
- Displacement: 249 cm³
- Stroke: 52.20mm
- Clearance: 0.04mm
- Wossner Compression Ratio: 13.90:1
- OEM Compression Ratio: 12.90:1
- Dome Volume: +0.00 cm³
- Compression Height: 19.00mm
- Lock Part Number: CW16
- Pin Part Number: WP059
- Ring Set Part Number: 780XAS
- Rod Part Number: P4001 (2010 - Current)
Cross-Reference OEM Part Numbers:
- 13101-KRN-670
- Wossner Part No: 8590DA
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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