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Wiseco Forged Piston kit
Compatibility
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Features
WISECO Forged Piston – Manufacturer Ref. W4952M07700C
Designed for modifications and replacements on Cross cylinders, this Wiseco forged piston adheres to the brand's standards of robustness. Machined from high-quality aluminum, it features precise bore dimensions and a finish suited for the demanding RPMs of 4-stroke cross engines. Ideal for those seeking a solid and accurate engine part for reassembly or top-end refurbishment.
- Type: Forged piston
- Compression: standard (factory compression height)
- Diameter: Ø 76.960 mm (technical reference Ø 76.97 mm)
- Oversize letter: C (oversize)
- Material: aluminum
- Delivered: kit with rings
- Universe: Cross
This piston is aimed at riders and workshops who want to maintain original characteristics while benefiting from the durability of a forged piston. Compatible with several models of YAMAHA YZ 250 F (notably CG27 2009, CG33 2010–2011), it fits into engine refurbishment work where bore tolerance and surface quality are critical for assembly.
Reference and compliance: W4952M07700C. Manufactured by WISECO, a historical player in forged parts for competition and intensive use.
| Feature | Value |
|---|---|
| Reference | WI00102A / 1118932003 |
| Oversize | +0,02 |
| Rings Quantity | Set |
| Compression Ratio | 13,5:1 |
| Diameter Ø (mm) | 76,97 |
| Engine | 4T |
| Diameter | 76.97 |
| Piston diameter | Ø 76,960 mm |
| Material | Aluminum |
| Piston type | Forged |
| Compression piston | Standard |
| Surcote | +0,02 |
| Use | All-terrain |
2 compatible models
- YAMAHA 250 YZ 250 F (CG27)2008 - 2009
- YAMAHA 250 YZ 250 F (CG33)2010 - 2011
