WISECO - WPC123 - Crankshaft Kit - Yamaha YZ85
The connecting rod operates at the intersection of the two highest-stress forces in your engine — combustion pressure and centrifugal load — and failure is always catastrophic. The WISECO WPC123 is engineered to handle those loads for Yamaha YZ85 engines with the material quality and dimensional precision that long-term reliability demands. Crankshafts are factory assembled and precision trued to OEM specifications. Double-forged Wiseco connecting rods maintain superior dimensional consistency through improved grain flow. Type: Bottom End. Trust the WPC123 to handle the loads your Yamaha YZ85 engine puts through it.
Features
- 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
Specifications
- Type: Bottom End
- Product Name: Crankshaft Kit
- Units: Kit
- Displacement: 85 cc
- Material: Steel
- Riding Style: Off-Road
- Stroke Length: 47.80 mm
Frequently Asked Questions - WISECO - WPC123 - Crankshaft Kit - Yamaha YZ85
How do I know if this part fits my vehicle?
Check the fitment information listed on this page against your exact year, make, model, and (where applicable) trim, engine size, or configuration. If your exact vehicle isn't listed, or you're not sure, use the product chat on this page or contact our support team before ordering - we're glad to help confirm fitment.
What does it mean if a product is listed as universal fit?
Universal fit means the product is designed to work across a range of vehicles, not that it's guaranteed to fit every one. Compare the listed measurements, mounting requirements, and connector or hardware specs against your specific vehicle before ordering, since some installations may need additional hardware or minor fabrication.
Where can I find installation instructions for this product?
General installation notes are provided above where available. For detailed step-by-step instructions, refer to the manufacturer's documentation included with the product, or use the product chat on this page for questions about difficulty, required tools, or whether professional installation is recommended.
What if I have more questions about this product?
Use the product chat on this page for fitment, specs, installation, and compatibility questions, or contact our support team directly for help before you order.
