What does a throwout bearing do in a motorcycle clutch?

The throwout bearing, also known as a release bearing, is activated when you pull the clutch lever. It pushes on the clutch pressure plate, disengaging the clutch so you can shift gears or stop without stalling the engine.

Does this bearing come with any hardware or instructions?

This product is the throwout needle bearing itself. It does not typically include additional hardware or installation instructions; refer to your motorcycle's service manual for the correct installation procedure.

What is the benefit of a needle bearing for a throwout bearing?

Needle bearings use small, cylindrical rollers to reduce friction and allow for smooth rotation. This design helps ensure efficient operation of the clutch release mechanism.

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Twin Power L75-17 Big Twin With Cable Clutch Throwout Needle Bearing Replaces H-D 37312-75

Specifications

Brand: TwinPower
Part #: 603197
UPC: 887337412412

Twin Power L75-17 Big Twin With Cable Clutch Throwout Needle Bearing Replaces H-D 37312-75

Name: Twin Power L75-17 Big Twin With Cable Clutch Throwout Needle Bearing Replaces H-D 37312-75
Brand: TwinPower
Price: 9.20 USD
Availability: InStock

$9.20

On Backorder — Expected to ship by Jul 9, 2026

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

Twin Power L75-17 Big Twin With Cable Clutch Throwout Needle Bearing Replaces H-D 37312-75

Key Features

Fits many Harley-Davidson Big Twin models with cable clutch.
Replaces Harley-Davidson part number 37312-75.
Made in USA.

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Product Details

This is the Twin Power L75-17 throwout needle bearing, designed for Big Twin motorcycles with cable clutches. It serves as a direct replacement for the Harley-Davidson part number 37312-75, ensuring a proper fit for many popular models. If you're working on the clutch assembly of your Big Twin, this bearing is a key component for smooth operation.

This well-built bearing is made in the USA, offering a reliable option for your motorcycle's clutch system. It's a straightforward part to install when you have the clutch components disassembled. Having a fresh throwout bearing can help prevent premature wear on other clutch parts and ensure consistent clutch engagement.