What does an inner primary bearing race do?

The inner primary bearing race sits on the transmission mainshaft. Its main job is to provide a stable surface for the bearing to rotate on, while also helping to protect the mainshaft seal and output gear from damage, especially when the motorcycle is under heavy load.

Why is this S&S Cycle race considered 'heavy duty'?

This race is built to resist 'walking' or shifting on the transmission mainshaft, which can happen with stock parts under heavy loads. By staying securely in place, it offers improved protection against costly damage to your mainshaft seal and bearing.

Does this part come with any hardware or seals?

This product listing is for the inner primary bearing race only. Any necessary seals or additional hardware would need to be purchased separately.

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Specifications

Brand: S&S Cycle
Part #: 56-5089
UPC: 56-5089

S&S Cycle 91-06 Inner Primary Bearing Race

Name: S&S Cycle 91-06 Inner Primary Bearing Race
Brand: S&S Cycle
SKU: s-s-cycle-s-s-cycle-91-06-inner-primary-bearing-race-t14-664485
Price: 81.95 USD
Availability: InStock

$81.95

Only 4 left in stock

S&S Cycle 91-06 Inner Primary Bearing Race. Prevents costly damage to your transmission's mainshaft seal and bearing.

Key Features

Fits 1991-2006 Harley-Davidson models.
Heavy duty construction helps prevent damage to the inner primary mainshaft seal, output gear, and bearing.
Designed to stay securely in place on the transmission mainshaft under heavy loads.
Sold individually.

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About this part

Product Details

This is the S&S Cycle heavy duty inner primary bearing race. It's designed to prevent damage to your transmission's mainshaft seal, output gear, and bearing, especially under heavy loads. This part is sold individually.

Under high stress, the stock bearing race can sometimes shift on the transmission mainshaft, leading to wear and potential failure of surrounding components. This heavy duty race is built to stay put, offering improved stability and protection for your engine's inner primary components. It's a well-built piece that can help you avoid more expensive repairs down the road.

This bearing race fits a wide range of Harley-Davidson models from 1991 through 2006, including many Dyna, Softail, and Electra Glide variations.