Wiseco's bottom-end rebuild kits help save time and money for your dirt bike, ATV, or UTV bottom-end rebuild. Available for many popular applications, these kits contain a crankshaft assembly, main bearings, and a bottom-end gasket kit, all in one box under one part number.
- Copper-plated, heat-treated, and shot-peened connecting rod to remove residual stress and smooth surface blends
- Includes complete crankshaft assembly, main bearings, and complete bottom-end gasket and seal kit in one box
- OEM quality main bearings and rod bearings for smooth operation and reliable longevity
- Elevated engineering and quality control measures to ensure reliable service
- Precision machined crank webs for ultimate strength and durability
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1999-2000 | Yamaha | YZ250 | Base |
