.040" (1.0 mm) oversized Yamaha ATV Wiseco Piston. 10.25: 1 Compression. Application:
84-88 Yamaha YTM, YFM 225
87-88 Yamaha Moto-4
| OEM Replacement This part is aftermarket equipment designed to replace the original manufacturer's part numbers specified here. It is manufactured using high-quality materials, to the same specifications as the original part. | Wiseco 4312M07100, Wiseco 4312P4 |
|---|---|
| Size | 71.0 mm Bore x 58 mm Stroke |
