PISTON KIT 11-12 TM250F FI 77, FORGED WOSSNER 8839DB
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Wossner 8839DB forged piston kit with a 77.00mm bore (76.97mm actual) and a +0.02mm oversizing. Engineered for superior strength and design, these pistons optimize combustion chamber heat transfer and feature an elliptical design for uniform bearing surfaces under heat expansion, preventing piston collapse and distributing thrust loads evenly. Made in Germany. Includes lock part number CW16, pin part number WP059, and ring set part number 770XAS-2. Specifications: 250 cm3 displacement, 53.60mm stroke, 0.04mm clearance, -2.10 cm3 dome volume, and 22.20mm compression height. Weight is 280g.
- SKU
- 56-W4958.B.WO
- Brand
- Wossner
- Availability
- In Stock (2)
Fitments (6)
| Make | Model | Year |
|---|---|---|
| TM | EN F 250 | 2011 |
| TM | EN F 250 | 2012 |
| TM | MX F 250 | 2011 |
| TM | MX F 250 | 2012 |
| TM | TM F 250 | 2011 |
| TM | TM F 250 | 2012 |
- General Product Group
- Engine
- General Product Type
- Pistons & Kits
- General Size
- 77mm
- Variant Id
- 256468
FULL DESCRIPTION
Wossner 8839DB Forged Piston Kit
This Wossner piston kit is precision engineered for optimal performance and durability. Designed with superior strength and advanced thermal management, this kit ensures efficient combustion and even load distribution.
Key Features:
- Forged construction for enhanced strength and longevity.
- Engineered for superior heat transfer from the combustion chamber to cylinder walls.
- Elliptical design provides a uniform bearing surface under heat expansion, preventing localized pressure and distributing thrust loads evenly.
- Made in Germany.
- Kit includes: Piston, Lock P/N CW16, Pin P/N WP059, Ring Set P/N 770XAS-2.
Specifications:
- Bore Size: 76.97mm (77.00mm nominal)
- Dome Volume: -2.10 cm3
- Compression Height: 22.20 mm
- Stroke: 53.60 mm
- Clearance: 0.04 mm
- Weight: 280 grams
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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Any customs duties or import taxes charged in the United States are paid by you when the parcel arrives. Any tax we collect ourselves is shown at checkout before you pay.
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