Harddrive Clutch Hub Keys - KEY OEM 37526-85d BIG Twin 1985-1990

Harddrive clutch hub keys for V-twin motorcycles, sold individually as a direct OEM replacement. Use these to secure the clutch hub to the primary shaft on Big Twin engines 1985–1990.

Features

• OEM replacement part
• Direct fit Big Twin 1985-1990
• Harddrive-branded clutch hub key

Specifications

• Brand: Harddrive
• Manufacturer Part #: 68-507A
• UPC: 191361168376
• Length: 6.49 in
• Width: 3.74 in
• Height: 1.18 in
• Weight: 0.022 lbs
• Country of Origin: China (Taiwan)

Fitment

Fits Harley-Davidson Big Twin engines 1985–1990 with OEM clutch hub configuration.

Frequently Asked Questions

What is a clutch hub key and what does it do?

The hub key locks the clutch hub to the primary shaft to prevent rotation during normal engine operation. It must be in place for proper clutch function.

Will this fit my 1991+ Big Twin?

This part number is specific to 1985–1990 Big Twin models. 1991 and newer engines use a different hub key — verify your model year before ordering.

Is this a single key or a set?

This is sold individually. Check your clutch hub assembly to determine how many keys you need.

Do I need to remove the primary cover to replace the hub key?

Yes — you must remove the primary cover and clutch assembly to access and replace the hub key.