✓ VERIFIED
Jun 30, 2024
Everything looks good but the dust cover is wrong one .it's soft rubber I need one to fit like a seal
HARDDRIVE
SKU: 820-52923
Harddrive Master Cylinder Rebuild Kit - FOR 5/8 Master CYL 1982-1995 — Harley-Davidson (1982-1995)
$25.16
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Harddrive master cylinder rebuild kit for 5/8-inch bore master cylinders on V-twin motorcycles from 1982-1995. Contains all seals, springs, and internal components needed to restore braking feel and eliminate sponginess without removing the master from the bike.
Features
- Complete internal rebuild kit
- For 5/8 in bore master cylinders
- All seals and springs included
- Direct OEM-equivalent replacement
Specifications
- Brand: Harddrive
- Manufacturer Part #: 29-028A
- UPC: 191361139680
- Length: 6.29 in
- Width: 3.74 in
- Height: 0.78 in
- Weight: 0.0881 lbs
- Country of Origin: China (Taiwan)
Fitment
Fits V-twin motorcycles with 5/8-inch bore master cylinders, 1982-1995 model years.
Frequently Asked Questions
What's included in this rebuild kit?
All internal seals, springs, and replacement components needed to fully rebuild a 5/8 in master cylinder.
Do I need to remove the master cylinder from my bike?
No — most riders can perform the rebuild without unbolting the master from the frame. Drain fluid first and work carefully.
Will this work on a master cylinder from a different year?
This kit is for 1982-1995 V-twin models with 5/8 in bore cylinders. Verify your bore size before ordering; wrong size kits will not fit.
How do I know if my master cylinder needs rebuilding?
Signs include soft or spongy brakes, slow lever return, or visible brake fluid leaks around the piston rod seal.
| BRAND | Harddrive |
| TYPE | Brakes |
| SKU | 820-52923 |
| WEIGHT | 0.09 lb |
Please contact us to confirm fitment for your specific motorcycle, or check the product title for compatibility notes.
CUSTOMER REVIEWS
3.73
11 RATINGS
5★
7
4★
0
3★
0
2★
2
1★
2
✓ VERIFIED
May 4, 2024
The outer rubber boot dust cover was to small and not Ridgid enough to hold the spring loaded component in the master cylinder. This master cylinder does not use a snap ring to hold components, just the lip of the boot. Had to use my old damaged boot. Not satisfied with new rebuild kit.
✓ VERIFIED
May 6, 2025
Not too good
Ordered 2 kits. The dust cover on the first tore. Then tried the dust cover on the second and it tore. I ordered these kits based on previous reviews which all seemed positive, maybe i just received 2 lemons, who knows. Rebuilding master cylinders is not difficult and the kits are usually good quality but i would not want these kits in my bike.
✓ VERIFIED
Apr 10, 2026
Not too good
The dust cover tore similar to someone else's review. Would not recommend.
✓ VERIFIED
Oct 20, 2025
Kit
Exactly what I needed. Worked great.
✓ VERIFIED
May 31, 2025
Wrong part
Wrong part, sent back. Jimmy was a great help, but parts was incorrect. And did not have correct part.
