Why is a top end bearing important for a two-stroke rebuild?

The top end bearing is crucial for the smooth rotation of the crankshaft and connecting rod assembly within the engine. Replacing it during a rebuild ensures proper support and reduces friction, which is vital for engine performance and longevity.

What does 'precision manufactured' mean for this bearing?

It means the bearing has been made to very tight tolerances by experienced manufacturers. This ensures that the bearing's dimensions and internal clearances are exact, which is important for proper fit and function in your engine.

Does this bearing come with any hardware?

This product is for the top end bearing only. Any necessary installation hardware, such as circlips or seals, would typically be purchased separately or may be included in a more comprehensive top-end rebuild kit.

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Specifications

Brand: Wiseco
Part #: B1038
UPC: 193564104601

Wiseco 15 x 20 x 17.8mm Top End Bearing

Name: Wiseco 15 x 20 x 17.8mm Top End Bearing
Brand: Wiseco
Price: 23.54 USD
Availability: InStock

$23.54

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Fits 1997-2004 Yamaha YZ125. Wiseco 15 x 20 x 17.8mm Top End Bearing. A must for every two-stroke top-end rebuild.

Key Features

Fits 1997-2004 Yamaha YZ125.
Wiseco 15 x 20 x 17.8mm top end bearing.
Precision manufactured by leading bearing suppliers.
Inspected for quality.
A must for every two-stroke top-end rebuild.

⚠️ 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 YZ125 1997-2004

Product Details

If you're rebuilding the top end of your 1997-2004 Yamaha YZ125, a new top end bearing is a critical part of the job. This bearing is essential for the smooth operation of your engine's moving parts.

Wiseco, known for their forged two-stroke pistons, understands the importance of a well-built bearing for your top end. This particular bearing is precision manufactured by leading bearing suppliers and then inspected for quality. It's a necessary component for any two-stroke top-end rebuild, ensuring proper support and reduced friction.