Harddrive Master Cylinder Rebuild Kit - With Retention Boot Harley Sportster
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.
Restore the crisp, responsive feel of your Harley-Davidson Sportster's front brake with this Harddrive master cylinder rebuild kit. It provides all the necessary seals, internal components, and the retention boot to ensure your braking system operates flawlessly.
Why riders pick this
- Complete internal seal and spring kit
- Includes crucial retention boot and pistons
- Fits OEM and aftermarket front master cylinders
- Restores original brake performance
- Designed for Harley Sportster XL models
A worn master cylinder can lead to a soft or inconsistent brake lever, compromising both feel and safety. This Harddrive kit offers a complete solution, allowing you to rebuild your existing front master cylinder instead of replacing the entire unit. It's a critical component for maintaining reliable braking performance on your Sportster.
Complete Kit for Sportster Brakes
- Full set of internal seals, pistons, and springs
- Includes the necessary retention boot for proper assembly
- Compatible with OEM and aftermarket front master cylinders
- Designed for specific 2007-2013 Harley Sportster XL models
Maintain Your Ride's Stopping Power
Regular maintenance of your braking system is non-negotiable for V-twin riders. This Harddrive kit makes it straightforward to address common wear points in your master cylinder, ensuring that your Sportster maintains its original stopping power and lever feel. It's an important step for any rider focused on safety and performance.
Specifications
- Brand: Harddrive
- Manufacturer Part #: 87717
- UPC: 191361356056
- Length: 5.7 in
- Width: 0.9 in
- Height: 3.75 in
- Weight: 1.1 lbs
- Country of Origin: Japan
Common questions
Will this rebuild kit fit my 2014 or newer Sportster?
No, this Harddrive master cylinder rebuild kit is specifically designed for 2007-2013 Harley-Davidson Sportster XL models. Later model years utilize different master cylinder internals.
What components are included in this kit?
This kit includes all the internal seals, pistons, springs, and the retention boot needed to fully rebuild the front master cylinder.
Are special tools required for installation?
Basic hand tools like a socket set and a small Phillips screwdriver are typically sufficient for this rebuild. However, always refer to your service manual for specific procedures.
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 | Brakes |
| SKU | 820-50612 |
| WEIGHT | 1.1 lb |
