What is the primary function of a top-end bearing in a two-stroke engine?

A top-end bearing, often found in the crankcase near the piston, helps support the crankshaft and allows it to rotate smoothly. It's crucial for reducing friction and wear in this high-stress area, especially during the combustion cycle of a two-stroke engine.

Does this bearing come with any hardware or seals?

This product is for the top-end bearing only. Any necessary seals, gaskets, or other hardware required for your specific engine rebuild should be sourced separately.

What does 'Prop 65' mean for this product?

The 'Prop 65' designation refers to California's Proposition 65, which requires businesses to provide warnings about significant exposures to chemicals that cause cancer, birth defects, or other reproductive harm. This warning is a regulatory requirement and does not necessarily indicate a direct risk during normal use.

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Specifications

Brand: Wiseco
Part #: B1021
UPC: 193564104526

Wiseco 16 x 20 x 22.5mm Top End Bearing

Name: Wiseco 16 x 20 x 22.5mm Top End Bearing
Brand: Wiseco
Price: 23.54 USD
Availability: InStock

$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 16 x 20 x 22.5mm Top End Bearing. Essential for two-stroke top-end rebuilds.

Key Features

Fits 31+ vehicle make/model combinations.
Measures 16mm inner diameter, 20mm outer diameter, and 22.5mm 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 dimensions of 16mm inner diameter, 20mm outer diameter, and 22.5mm width, this top-end bearing from Wiseco is a critical component for any two-stroke engine rebuild. Wiseco, known for its forged pistons, understands that the quality of your bearings directly impacts the performance and longevity of your engine's top end. This bearing is manufactured by leading bearing suppliers and undergoes rigorous inspection to ensure it meets the high standards required for a reliable rebuild.

This bearing is a must-have for anyone undertaking a top-end overhaul on a wide range of two-stroke vehicles. Whether you're working on an Arctic Cat Panther, a Kawasaki H1 Mach III, or a Yamaha RD400, ensuring you have a well-built bearing is key to a successful rebuild. The precision manufacturing and quality checks mean you can install this part with confidence, knowing it's built to perform under the demands of a two-stroke engine.