What specific components are included in this crankshaft kit?

This kit contains a complete crankshaft assembly, OEM quality main bearings, rod bearings, and a full bottom-end gasket and seal kit. It's designed to cover the essential parts for a bottom-end rebuild.

What is the benefit of the shot-peening process on the connecting rod?

The shot-peening process, along with heat treatment and copper plating, helps to remove residual stress within the connecting rod. It also smooths surface blends, which contributes to the rod's overall durability and reliability under engine load.

Does this kit include everything needed to complete the bottom-end rebuild?

This kit provides the crankshaft, bearings, and gaskets/seals for the bottom end. While it covers the core components, you may need additional items like engine oil and assembly lube, depending on your specific rebuild process. Always refer to the manufacturer's service manual for a complete list.

Wiseco 03-05 Yamaha YZ450F Crankshaft Kit

Specifications

Brand: Wiseco
Part #: WPC139
UPC: 193564111432

Wiseco 03-05 Yamaha YZ450F Crankshaft Kit

Name: Wiseco 03-05 Yamaha YZ450F Crankshaft Kit
Brand: Wiseco
Price: 613.29 USD
Availability: InStock

$613.29

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Fits 2003-2005 Yamaha YZ450F. Wiseco Crankshaft Kit includes crankshaft, bearings, and gasket kit for a complete bottom-end rebuild.

Key Features

Fits 2003-2005 Yamaha YZ450F.
Connecting rod is copper-plated, heat-treated, and shot-peened to reduce stress and smooth surfaces.
Includes complete crankshaft assembly, main bearings, and a full bottom-end gasket and seal kit.
Features OEM quality main and rod bearings for smooth operation and longevity.
Precision machined crank webs contribute to ultimate strength.
Wiseco's quality control measures ensure reliable service.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Fits this vehicle

Yamaha YZ450F 2003-2005

Product Details

The connecting rod in this Wiseco kit is copper-plated, heat-treated, and shot-peened. This process helps remove residual stress and smooths surface blends, which is a key step in ensuring the rod's durability under demanding conditions. If you're rebuilding the bottom end of your 2003-2005 Yamaha YZ450F, this kit is designed to make the job more straightforward by bringing essential components together.

Wiseco has put together this comprehensive kit to save you time and money when tackling a bottom-end rebuild. Inside, you'll find a complete crankshaft assembly, which is precision machined for strength. It also includes OEM quality main bearings and rod bearings, ensuring smooth operation and reliable longevity for your engine. To top it off, a complete bottom-end gasket and seal kit is included, so you have everything needed to seal up the engine case properly.

Having all these critical parts in one box, under a single part number, simplifies the purchasing process and helps ensure you have the right components for a successful rebuild. This approach, combined with Wiseco's elevated engineering and quality control measures, aims to provide reliable service for your dirt bike.