WISECO
Crankshaft Kit - Yamaha YZ125/YZ125X
Part # 0921-0549
$421.95
Earn store credit on this purchase
In Stock
- 60-day returns
- Free shipping over $100
- Secure checkout
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
Customer Reviews
No reviews yet — be the first to review this part.
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.
More from WISECO
WISECO · B1001
WISECO B1001 Top End Bearing - 15 mm x 19 mm x 17.3 mm
In Stock$25.95
WISECO · B1014
WISECO B1014 Top End Bearing - 18 mm x 23 mm x 22 mm
In Stock$25.95
WISECO · 2756XC
WISECO 2756XC Ring Set
In Stock$47.65
WISECO · 0903-0303
WISECO 0903-0303 Piston Kit with Gaskets - 48.00 mm - Suzuki RM85
Low Stock (6)$186.95
WISECO · 0926-1748
WISECO 0926-1748 Intake Valve - Yamaha YFM660F/YFM660R/YXR660
Low Stock (5)$38.95
WISECO · 0903-1594
WISECO 0903-1594 Tracker™ Series Piston Kit - 3.937"- 96 Cubic Inch Bored to 106 Cubic Inch - Twin Cam
In Stock$351.95
WISECO · 0912-0927
WISECO 0912-0927 Ring Set
Low Stock (9)$52.95
WISECO · CW14
WISECO CW14 Circlip
In Stock$2.99