PISTON KIT 13-16 SXF250 78mm A WOSSNER 8874DA HC KTM 77730007100
Wossner 78mm Bore Piston Kit (Part No. 56-W954.A.WO.HC) for KTM SXF250 2013-2016. High compression. This forged piston kit features enhanced strength, optimal heat transfer, and a uniform bearing surface due to its elliptical design. Achieves a high compression ratio of 14.50:1. Manufactured in Germany. Displacement: 249 cm3, Hub Stroke: 52.30 mm, Clearance: 0.04 mm, Dome Volume: -1.20 cm3, Compression Height: 19.50 mm. Kit includes piston, lock (P/N CW16), pin (P/N WP070), and ring set (P/N RIK78.00). Cross-reference numbers: 77730007100, 4981M07600.
- SKU
- 56-W954.A.WO.HC
- Brand
- Wossner
- Availability
- In Stock (30)
FULL DESCRIPTION
Wossner 78mm High Compression Piston Kit
Enhance the performance and durability of your engine with this precision-engineered Wossner 78mm Bore Piston Kit. Crafted in Germany, Wossner forged pistons are renowned for their exceptional quality and innovative design, delivering superior strength and optimal heat transfer for demanding applications.
The elliptical design of these pistons ensures a uniform bearing surface, even under extreme heat expansion, effectively distributing thrust loads and preventing piston collapse for consistent, reliable performance. This kit is specifically designed for high compression, allowing you to achieve a higher compression ratio of 14.50:1 for increased power output.
Key Features:
- Enhanced Strength: Engineered for superior strength and durability using forged construction.
- Optimal Heat Transfer: Meticulously designed to improve heat transfer from the combustion chamber.
- Uniform Bearing Surface: Elliptical design prevents localized pressure and piston collapse under heat expansion.
- High Compression: Achieves a 14.50:1 compression ratio for increased power.
- German Craftsmanship: Manufactured to the highest standards of quality and precision in Germany.
Product Details:
- Bore Size: 78mm
- Displacement: 249 cm³
- Hub Stroke: 52.30 mm
- Clearance: 0.04 mm
- Dome Volume: -1.20 cm³
- Compression Height: 19.50 mm
- Included Components: Piston, lock (CW16), pin (WP070), and ring set (RIK78.00).
This Wossner piston kit is a high-quality upgrade for performance-oriented engine builds, offering a perfect blend of power, reliability, and precision engineering. Cross-reference numbers include 77730007100 and 4981M07600.


