CRANKSHAFT BOTTOM KIT 05-20 YZ125, WISECO WPC163 YAMAHA MX
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Wiseco Crankshaft Bottom Kit WPC163 for Yamaha YZ125 2005-2020. Precision-trued to OEM specifications and factory assembled. Shot-peening eliminates residual stresses and smoothly blends rod forging surfaces. Features a corrosion-resistant surface treatment. Crank pin bearing radial running clearance is optimized for maximum performance. Precision honing ensures an ultra-round bearing surface. Engineered oiling slots maximize rod strength and bearing life. Double-drilled small ends provide extra lubrication and cooling for the piston pin, reducing top-end distortion from thermal transfer. Silver-coated bronze phosphor thrust washers with a dimpled design increase oil retention and reduce friction. Crank pin bearings are manufactured with high-quality hot-rolled steel, case hardened to 58-62 RC. Caged needle roller bearings provide the highest possible RPM. Includes: 1 Crankshaft with connecting rod installed, 2 22 x 56 x 16mm Bearings, and 1 Bottom End gasket set with 10 seals.
- SKU
- 56-240.WI
- Brand
- Wiseco
- Availability
- In Stock (1)
Fitments (17)
| Make | Model | Year |
|---|---|---|
| YAMAHA | YZ 125 | 2005 |
| YAMAHA | YZ 125 | 2006 |
| YAMAHA | YZ 125 | 2007 |
| YAMAHA | YZ 125 | 2008 |
| YAMAHA | YZ 125 | 2009 |
| YAMAHA | YZ 125 | 2010 |
| YAMAHA | YZ 125 | 2011 |
| YAMAHA | YZ 125 | 2012 |
| YAMAHA | YZ 125 | 2013 |
| YAMAHA | YZ 125 | 2014 |
| YAMAHA | YZ 125 | 2015 |
| YAMAHA | YZ 125 | 2016 |
| YAMAHA | YZ 125 | 2017 |
| YAMAHA | YZ 125 | 2018 |
| YAMAHA | YZ 125 | 2019 |
| YAMAHA | YZ 125 | 2020 |
| YAMAHA | YZ 125 | 2021 |
- General Product Group
- Crankshafts & Parts
- General Product Type
- Crankshaft Bottom End Kits
- Variant Id
- 250362
FULL DESCRIPTION
Wiseco Crankshaft Bottom End Kit for Yamaha YZ125
This Wiseco Crankshaft Bottom End Kit is engineered for optimal performance and durability. Precision-trued to OEM specifications, this kit provides a high-quality replacement for your Yamaha YZ125. The components are treated to enhance longevity and ensure smooth operation.
Key Features:
- Precision-trued to OEM specifications and factory assembled.
- Shot-peening eliminates residual stresses and smoothly blends rod forging surfaces.
- Corrosion-resistant surface treatment for extended durability.
- Optimized crank pin bearing radial running clearance for maximum performance.
- Precision honing ensures an ultra-round bearing surface.
- Engineered oiling slots maximize rod strength and bearing life.
- Double-drilled small ends provide enhanced lubrication and cooling for the piston pin, reducing top-end distortion.
- Silver-coated bronze phosphor thrust washers with a dimpled design increase oil retention and reduce friction.
- Crank pin bearings are manufactured with high-quality hot-rolled steel, case hardened to 58-62 RC.
- Caged needle roller bearings support the highest possible RPM.
- Precision-machined crank webs.
- Includes top-end bearing and gasket.
Included Items:
- One Crankshaft with connecting rod installed
- Two 22 x 56 x 16mm Bearings
- One Bottom End gasket set with 10 seals
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Check the fitment table on this page against your make, model and year. Not sure? Call or email us and we will check it for you before you order.
UK delivery is £4.99, or free on orders over £60. Orders ship within 3 working days, then delivery takes 2–4 business days. Delivery details
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