What components are included in this bottom end gasket kit?

This Wiseco kit includes a complete crankshaft assembly, main bearings, and all the necessary gaskets and seals for your engine's bottom end rebuild.

What is the benefit of the connecting rod treatment?

The connecting rod is copper-plated, heat-treated, and shot-peened. This process helps remove residual stress and smooths the surface, contributing to its overall strength and durability.

Are the bearings in this kit high quality?

Yes, the kit includes main bearings and rod bearings that are OEM quality, ensuring smooth operation and reliable longevity for your engine.

Wiseco 1998 Yamaha YZ250 Bottom End Gasket Kit

Specifications

Brand: Wiseco
Part #: WB1157
UPC: 193564115706

Wiseco 1998 Yamaha YZ250 Bottom End Gasket Kit

Name: Wiseco 1998 Yamaha YZ250 Bottom End Gasket Kit
Brand: Wiseco
Price: 63.74 USD
Availability: InStock

$63.74

On Backorder

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

Fits 1998 Yamaha YZ250. This Wiseco bottom end gasket kit includes a crankshaft, main bearings, and all necessary gaskets and seals for a complete rebuild.

Key Features

Fits 1998 Yamaha YZ250.
Includes complete crankshaft assembly, main bearings, and a complete 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.
Features precision-machined crank webs for strength and durability.
Main bearings and rod bearings are OEM quality for smooth operation and reliable longevity.
Gasket kits supply all specified gaskets and seals under one part number.

⚠️ 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 1998

Product Details

When you're rebuilding the bottom end of your 1998 Yamaha YZ250, getting all the right seals and gaskets in one place saves a lot of hassle. This kit from Wiseco bundles everything you need for that crucial bottom-end job, making sure you have all the specified gaskets and seals ready to go under a single part number.

Inside this box, you'll find not just the complete bottom-end gasket and seal kit, but also a full crankshaft assembly and main bearings. The connecting rod is copper-plated, heat-treated, and shot-peened to reduce stress and smooth out the surface, contributing to its strength. Wiseco uses OEM quality main and rod bearings to ensure smooth operation and reliable longevity for your engine.

This kit is designed to help you get every rebuild done right, with precision-machined crank webs for ultimate strength. It's a well-built package that brings together essential components for a convenient and reliable engine rebuild.