| Size | 77mm |
|---|---|
| Product Type | Pistons & Kits |
| Product Group | Engine |
| Catalogue | DIRT |
| Piston Diameter | 77.00 |
| Bore Diameter | |
| Piston Grade | |
| Compression Ratio |
PISTON KIT 07-09 RMZ250 77.00, WOSSNER 8666DB SUZUKI
The Wossner 8666DB forged piston kit with a 77.01mm bore is designed for Suzuki RM-Z250 models from 2007 to 2009. Made in Germany, this high-performance piston ensures efficient heat dissipation and strength. Its elliptical design provides a uniform bearing surface during thermal expansion, reducing stress concentrations and preventing piston failure.
Features
- Forged piston for enhanced strength and longevity
- Optimized for efficient heat transfer to cylinder walls
- Elliptical shape distributes load evenly under thermal expansion
- Reduces localized pressure and risk of piston collapse
- Manufactured in Germany
Specifications
- Bore: 77.01 mm
- Actual Bore Diameter: 76.97 mm
- Display: 249 cm³
- Hub Stroke: 53.60 mm
- Clearance: 0.04 mm
- Compression Height: 19.60 mm
- Dome Volume: -3.30 cm³
- Wossner Compression Ratio: OEM
- OEM Compression Ratio: 13.40:1
Cross-Reference OEM Part Numbers
- Piston: 8666DB
- Lock: CW16
- Pin: WP059
- Ring Set: 770XAS
- Rod: P4004
- Main Bearing: 2 x MB830046
- Part No.: 56-W4921.B.WO
Vehicle Fitments
- Suzuki RM-Z250 2007–2009
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