Harddrive Clutch Hub Nut - Big Twin
About Harddrive
Harddrive is the house performance and replacement line built for American V-twins, covering everything from engine hardware and electrical to controls, lighting and chassis parts. The range is aimed squarely at Harley-Davidson and Indian riders who want a direct-fit part without dealer pricing, and it spans decades of model years — from Evolution-era Softails to current Milwaukee-Eight baggers.
This Harddrive Clutch Hub Nut is a crucial component for securing your Big Twin V-twin motorcycle's clutch assembly. As an OEM replacement, it's manufactured to exact specifications, ensuring a precise fit and reliable performance. This nut plays a vital role in keeping your clutch hub locked firmly to the crankshaft.
Why riders pick this
- Direct OEM replacement clutch hub nut
- Manufactured to original equipment specifications
- Secures clutch hub to crankshaft
- Essential for clutch assembly integrity
- Designed for Harley Big Twin models
A properly secured clutch hub is essential for the safe and efficient operation of your motorcycle's drivetrain. This Harddrive clutch hub nut is designed to hold the entire clutch assembly in place, preventing movement under the demanding forces of engine power. It's a small but critical part that ensures consistent power transfer and clutch engagement on your Harley-Davidson Big Twin.
Precision Engineered for Security
- Direct OEM replacement for factory part
- Manufactured to original equipment specifications for a precise fit
- Secures the clutch hub to the crankshaft reliably
- Essential for proper clutch assembly function
Reliable Drivetrain Foundation
When performing clutch maintenance or upgrades on your Big Twin, using a high-quality clutch hub nut like this Harddrive unit is paramount. It provides the necessary security for the clutch hub, contributing to overall drivetrain integrity. Ensure peace of mind knowing your clutch components are locked down tight for every ride.
Specifications
- Brand: Harddrive
- Manufacturer Part #: 144486
- OEM Part #: 37496-90
- UPC: 191361073700
- Length: 2.15 in
- Width: 1.65 in
- Height: 1.2 in
- Weight: 0.09 lbs
- Country of Origin: China (Taiwan)
Common questions
Is this clutch hub nut compatible with Sportster models?
No, this Harddrive clutch hub nut is specifically designed for Big Twin engines only. Sportster models utilize a different hub nut.
What is the function of the clutch hub nut?
The clutch hub nut's primary function is to securely fasten the clutch hub assembly to the crankshaft, preventing any loosening or movement during engine operation.
How can I confirm this part fits my specific Big Twin model?
While designed for Big Twin V-twin motorcycles from 1990 and newer, it's always best to cross-reference the OEM part number with your service manual or use our Shop by Bike tool to verify fitment for your exact year and model.
Ordering from Vtwinbikers
- Brand new, sourced through authorized US distribution — never used, never grey-market.
- Not sure it fits? Use Shop by Bike to filter by your year and model, or email us and we will confirm before you order.
- Harley-Davidson and Indian Motorcycle is all we do, so you are talking to people who ride what you ride.
| BRAND | Harddrive |
| TYPE | Clutch |
| SKU | 820-54717 |
| WEIGHT | 0.09 lb |
