| Size | 77mm |
|---|---|
| Product Type | Pistons & Kits |
| Product Group | Engine |
| Catalogue | DIRT |
| Piston Diameter | 77.00 |
| Bore Diameter | |
| Piston Grade | |
| Compression Ratio |
PISTON KIT 2014 YZF250 77.0 HC, FORGED WOSSNER 8894DC
This Wossner forged piston kit, part number 8893DC, features a 77.02mm bore with an actual piston size of 76.97mm (+0.02mm oversize). Designed for Yamaha YZF250 models from 2014 to 2015, it is a high-compression piston made in Germany. Its elliptical design enhances strength, distributes load evenly, and supports optimal heat transfer for high-performance four-stroke engines.
Features
- Forged piston construction for high strength and reliability
- High compression design for increased performance
- Elliptical profile for balanced expansion and load distribution
- Engineered for effective combustion heat transfer
- Made in Germany
- Direct OEM replacement
- Easy to install; professional installation recommended if unsure
Specifications
- Bore Size: 77.02mm
- Actual Piston Size: 76.97mm
- 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
Cross-Reference OEM Part Numbers
- 1SM-11631-01-00
- CW16 (Lock)
- WP087 (Pin)
- 770XAS-2 (Ring Set)
Vehicle Fitments
- YZF250 (2014–2015)
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