CRANKSHAFT BOTTOM KIT 05-07 RMZ450, WISECO WPC142 SUZUKI MX
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Wiseco Crankshaft Bottom Kit with Bearings and Gaskets WPC142. Precision-trued to OEM specifications. Connecting rods are double-forged for superior dimensional consistency. Shot-peening eliminates residual stresses and smoothly blends rod forging surfaces. Corrosion-resistant surface treatment. Top and bottom end rod bores are case hardened to 58-62 RC to optimize the 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 the piston pin with extra lubrication and cooling, reducing distortion of the top end due to thermal transfer from the piston. Silver-coated bronze phosphor thrust washers with a dimpled design increase oil retention and reduce friction between the rod and washer interface. Crank pin bearings are manufactured with the highest-quality hot-rolled steel and case hardened to 58-62 RC.
- SKU
- 56-290.WI.CBK
- Brand
- Wiseco
- Availability
- In Stock (2)
Fitments (3)
| Make | Model | Year |
|---|---|---|
| SUZUKI | RM-Z 450 | 2005 |
| SUZUKI | RM-Z 450 | 2006 |
| SUZUKI | RM-Z 450 | 2007 |
- General Product Group
- Crankshafts & Parts
- General Product Type
- Crankshaft Bottom End Kits
- Variant Id
- 250483
FULL DESCRIPTION
Wiseco Crankshaft Bottom Kit
This Wiseco Crankshaft Bottom Kit is designed for optimal performance and durability. Each component is precision-engineered to meet or exceed OEM specifications, ensuring a perfect fit and reliable operation.
Key Features:
- Precision Trued: Crankshaft is trued to OEM specifications for balanced rotation.
- Double-Forged Connecting Rods: Superior dimensional consistency and improved grain flow.
- Shot-Peened Finish: Eliminates residual stresses and smooths rod surfaces for increased strength.
- Corrosion-Resistant Treatment: Enhances longevity and protects against environmental factors.
- Case-Hardened Bores: Top and bottom end rod bores are hardened to 58-62 RC for optimal bearing surface.
- Optimized Bearing Clearance: Crank pin bearing radial running clearance is fine-tuned for maximum performance.
- Precision Honing: Ensures an ultra-round bearing surface for smooth operation.
- Engineered Oiling Slots: Maximize rod strength and bearing life by ensuring proper lubrication.
- Double-Drilled Small Ends: Provide extra lubrication and cooling to the piston pin, reducing thermal distortion.
- Silver-Coated Thrust Washers: Phosphor bronze thrust washers with a dimpled design increase oil retention and reduce friction.
- High-Quality Crank Pin Bearings: Manufactured with hot-rolled steel and case hardened to 58-62 RC.
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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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