CRANKSHAFT BOTTOM KIT 06-09 YZF450, WISECO WPC151 YAMAHA KIT
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Wiseco Crankshaft Bottom Kit with Bearings and Gaskets. Part number WPC151. Precision-trued to OEM specifications. Connecting rods are double-forged for superior dimensional consistency and grain flow. Shot-peening eliminates residual stresses and smooths rod forging surfaces. Corrosion-resistant surface treatment. Top and bottom end rod bores are case hardened to 58-62 RC for optimal bearing running surface. Crank pin bearing radial running clearance is optimized for maximum performance. Precision honing ensures an ultra-round bearing surface. Precision-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 due to thermal transfer from the piston. Silver-coated bronze phosphor thrust washers with dimpled design increase oil retention and reduce friction between the rod and washer interface. Crank pin bearings manufactured with high-quality hot-rolled steel, case hardened to 58-62 RC.
- SKU
- 56-138.WI.CBK
- Brand
- Wiseco
- Availability
- In Stock (2)
Fitments (8)
| Make | Model | Year |
|---|---|---|
| YAMAHA | YZ 450F | 2006 |
| YAMAHA | YZ 450F | 2007 |
| YAMAHA | YZ 450F | 2008 |
| YAMAHA | YZ 450F | 2009 |
| YAMAHA | YZF 450 | 2006 |
| YAMAHA | YZF 450 | 2007 |
| YAMAHA | YZF 450 | 2008 |
| YAMAHA | YZF 450 | 2009 |
- General Product Group
- Crankshafts & Parts
- General Product Type
- Crankshaft Bottom End Kits
- Variant Id
- 250048
FULL DESCRIPTION
Wiseco Crankshaft Bottom Kit
This Wiseco Crankshaft Bottom Kit provides a high-performance upgrade for your motorcycle's engine. Engineered for precision and durability, this kit includes essential components for a robust bottom end.
Key Features:
- Precision Trued: Crankshafts are trued to OEM specifications for accurate fitment and optimal performance.
- Double-Forged Connecting Rods: Enhance dimensional consistency and improve grain flow for superior strength.
- Shot-Peened Finish: Eliminates residual stresses and smoothly blends forging surfaces, reducing the risk of fatigue.
- Corrosion-Resistant Surface Treatment: Protects components from environmental degradation.
- Case-Hardened Rod Bores: Hardened to 58-62 RC to create an optimized running surface for bearings.
- Optimized Crank Pin Bearing Clearance: Ensures maximum performance by precisely setting the radial running clearance.
- Precision Honing: Guarantees an ultra-round bearing surface for smooth operation.
- Engineered Oiling Slots: Maximizes rod strength and bearing life by ensuring proper lubrication.
- Double-Drilled Small Ends: Provide the piston pin with extra lubrication and cooling, minimizing distortion from piston heat.
- Silver-Coated Thrust Washers: Features a dimpled design to increase oil retention and reduce friction between the rod and washer interface.
- High-Quality Crank Pin Bearings: Manufactured with hot-rolled steel and case hardened to 58-62 RC for exceptional durability.
This kit is designed to deliver enhanced reliability and performance for your engine.
QUESTIONS? JUST ASK
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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.
Yes. We ship from the UK. Orders ship within 3 working days, then delivery to the United States takes 5–8 business days. The delivery price is shown at checkout before you pay. Delivery details
Yes. You have 14 days from delivery to return it, unused and in its original packaging. Contact us first and we will send you the return instructions. Returns policy
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Any customs duties or import taxes charged in the United States are paid by you when the parcel arrives. Any tax we collect ourselves is shown at checkout before you pay.
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