What components are included in this Wiseco crankshaft kit?

This kit contains a complete crankshaft assembly, main 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 connecting rod's copper plating and heat treatment?

The copper plating, heat treatment, and shot-peening process on the connecting rod are done to remove residual stress and smooth the surface. This helps ensure the rod's durability and reliability under operating conditions.

Are the bearings in this kit of good quality?

Yes, the kit includes main bearings and rod bearings that are OEM quality. This is intended to ensure smooth operation and provide reliable longevity for your engine.

Wiseco 99-00 Yamaha YZ250 Crankshaft Kit

Specifications

Brand: Wiseco
Part #: WPC126
UPC: 193564110992

Wiseco 99-00 Yamaha YZ250 Crankshaft Kit

Name: Wiseco 99-00 Yamaha YZ250 Crankshaft Kit
Brand: Wiseco
Price: 456.28 USD
Availability: InStock

$456.28

On Backorder

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

Fits 1999-2000 Yamaha YZ250. Wiseco crankshaft kit includes crankshaft, main bearings, and gasket set for a complete bottom-end rebuild.

Key Features

Fits 1999-2000 Yamaha YZ250.
Includes a complete crankshaft assembly, main bearings, and a full bottom-end gasket and seal kit.
The connecting rod is copper-plated, heat-treated, and shot-peened to remove residual stress and smooth surface blends.
Precision machined crank webs contribute to ultimate strength and durability.
Features OEM quality main bearings and rod bearings for smooth operation and reliable longevity.

⚠️ 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 YZ250 1999-2000

Product Details

Wiseco is known for making well-built engine components, and this crankshaft kit is no exception. If you're rebuilding the bottom end of your 1999 or 2000 Yamaha YZ250, this kit bundles everything you need into one convenient part number, saving you time and hassle.

Inside this kit, you'll find a complete crankshaft assembly, main bearings, and a full bottom-end gasket and seal kit. The connecting rod is copper-plated, heat-treated, and shot-peened to reduce stress and ensure a smooth finish. Precision machining on the crank webs adds to its strength and durability, while the included OEM-quality main and rod bearings help ensure smooth operation and long life. It’s a solid option for getting your YZ250 back to reliable performance.