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

The top end bearing supports the crankshaft and connects it to the connecting rod. In a two-stroke, this area experiences high stresses, so a well-made bearing is crucial for smooth operation and preventing premature wear.

What does 'inspected for quality' mean for this bearing?

It means that after being manufactured by leading suppliers, these bearings undergo checks to ensure they meet specific quality standards. This helps confirm they are ready for installation and will perform as expected in your engine.

Does this bearing come with any hardware or seals?

This product is for the top end bearing only. You will need to source any associated seals, clips, or other hardware separately for your specific engine rebuild.

Wiseco Top End Bearing 20x25x21.8mm B1039

Name: Wiseco 20 x 25 x 21.8mm Top End Bearing
Brand: Wiseco
Price: 23.54 USD
Availability: InStock

Wiseco 20 x 25 x 21.8mm Top End Bearing

$23.54

On Backorder

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

Wiseco 20x25x21.8mm Top End Bearing. Essential for two-stroke top-end rebuilds.

Key Features

Fits 39+ vehicle make/model combinations.
Bearing dimensions are 20mm inner diameter, 25mm outer diameter, and 21.8mm width.
Manufactured by leading bearing suppliers.
Inspected for quality assurance.
Essential component for two-stroke top-end rebuilds.

⚠️ 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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Product Details

With its 20mm inner diameter, 25mm outer diameter, and 21.8mm width, this Wiseco top end bearing is a critical component for any two-stroke engine rebuild. Wiseco, known for its forged pistons, understands the importance of a well-functioning top end. This bearing is manufactured by leading suppliers and then inspected to ensure it meets quality standards, making it a solid choice for your engine's critical moving parts.

When you're rebuilding the top end of your two-stroke, a reliable bearing is not optional. This Wiseco bearing is designed to handle the stresses of the top end and is a must-have part for ensuring smooth operation and longevity. It's a part that fits a wide range of vehicles, including popular models like the Polaris 500 XC and Yamaha SRX700, as well as many Sea-Doo and Ski-Doo applications.

Having a quality bearing in place is essential for the performance and durability of your engine. This Wiseco bearing is a straightforward replacement part that helps ensure your top end rebuild is done right.