What is the benefit of the connecting rod being heat-treated and shot-peened?

These processes help remove residual stress from the connecting rod and smooth its surface. This contributes to increased strength and more reliable longevity for the crankshaft assembly.

Are these parts considered OEM quality?

Wiseco states that their gasket kits deliver OEM+ quality, and the main and rod bearings included are OEM quality. This ensures smooth operation and reliable longevity for your engine's bottom end.

Wiseco 14-18 YZ250F Bottom End Gasket Kit

Specifications

Brand: Wiseco
Part #: WB1184
UPC: 193564117106

Wiseco 14-18 YZ250F Bottom End Gasket Kit

Name: Wiseco 14-18 YZ250F Bottom End Gasket Kit
Brand: Wiseco
Price: 103.00 USD
Availability: InStock

$103.00

On Backorder

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

Fits 2014-2018 Yamaha YZ250F. Wiseco Bottom End Gasket Kit includes crankshaft, bearings, and all necessary gaskets for a complete rebuild.

Key Features

Fits 2014-2018 Yamaha YZ250F.
Includes complete crankshaft assembly, main bearings, and complete bottom-end gasket and seal kit.
Gaskets are supplied by leading gasket suppliers and meet OEM quality standards.
Connecting rod is copper-plated, heat-treated, and shot-peened for reduced stress and smooth surface blends.
Crankshaft webs are precision machined for strength.
Main and rod bearings are OEM quality 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 YZ250F 2014-2018

Product Details

When you're getting ready to rebuild the bottom end of your 2014-2018 Yamaha YZ250F, this kit from Wiseco is designed to make the job easier. You get a complete crankshaft assembly, main bearings, and a full set of bottom-end gaskets and seals, all packaged together under a single part number. This saves you the hassle of sourcing each component separately.

Wiseco sources its gaskets from leading suppliers, ensuring they meet OEM quality standards for a reliable rebuild. The crankshaft itself is precision machined for strength, and the connecting rod is copper-plated, heat-treated, and shot-peened to reduce stress and smooth out the surfaces. This attention to detail helps ensure smooth operation and longevity for your engine's bottom end.