WISECO
Crankshaft Kit - Yamaha YZ125/YZ125X
Part # 0921-0549
$421.95
Low Stock (6)
- 60-day returns
- Free shipping over $100
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Confirmed fit for 20 motorcycle configurations across Yamaha, model years 2005–2022.
| Years | Make & Model |
|---|---|
| 2005-2021 Yamaha | YZ125 |
| 2020-2022 Yamaha | YZ125X |
- Crankshafts are factory assembled and precision trued to OEM specifications
- Double-forged Wiseco connecting rods maintain superior dimensional consistency through improved grain flow
- Shot-peening eliminates residual stresses and smoothly blends the rod forging surfaces
- Corrosion-resistant surface treatment
- Crank pin bearing radial running clearance is optimized to ensure maximum performance
- Precision honing ensures ultra round bearing surface
- Precision engineered oiling slots maximize rod strength and bearing life
- Double-drilled small ends provide the piston pin with extra lubrication and cooling, reducing distortion of top end due to thermal transfer from the piston
- Kit includes crankshaft assembly, main bearings, and bottom-end gasket kit
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Overview
The WISECO 0921-0549: Crankshaft Kit - Yamaha YZ125/YZ125X. Confirmed fit for 20 motorcycle configurations across Yamaha, model years 2005–2022. Ships from Greasemoto — a veteran-owned motorcycle parts shop in Fort Worth, TX — with free U.S. shipping on orders over $100.
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