507430 Front caliper seal kit
Fits: 78-83 XL Sportster; 77-83 FX; FXWG;…
incl. VAT
Chapter members save 15% · Sign in for member pricing
Estimated delivery: 3–15 working days
Authorised
Iron City Dealer
14-Day Returns
Easy & hassle-free
Secure Checkout
256-bit encryption
Free UK Delivery
On orders over £100
Specifications
- Brand
- MCS
- Part Number
- 507430
- OEM Reference
- 44151-77
- Pack Quantity
- Sold as kit
- Category
- Brake Caliper Repair Kits
- VAT Rate
- 20%
About This Product
If your front brakes are feeling a bit soft or you have spotted a leak around the piston, it is time for a rebuild. This front caliper seal kit from MCS is specifically tailored for 1978 to 1983 XL Sportster models, as well as 1977 to 1983 FX, FXWG, and FXR models. It includes the necessary seals to restore the hydraulic integrity of your front braking system. Maintaining these seals is crucial for consistent lever feel and safety on the road. This kit is a direct replacement for OEM part 44151-77 and is sold as a kit, giving you everything required to refresh the internals of your front caliper.
Manufacturer part number: 507430.
Fitment
28 models78-83 XL Sportster; 77-83 FX; FXWG; FXR
Cafe Racer 1 model
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1977–1978 | Sportster 1000 XLCR-1000 |
FXR 3 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1982–1983 | FXR Low Glide FXRS |
| Harley-Davidson | 1982–1983 | FXR Super Glide FXR |
| Harley-Davidson | 1983 | FXR Touring FXRT |
Low Rider 2 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1977–1979 | FX Super Glide FXS-1200 |
| Harley-Davidson | 1979–1980 | FX Super Glide FXS-80 |
Roadster 1 model
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1979–1980 | Sportster 1000 XLS-1000 |
Softail 7 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1983 | Dyna Glide Glide Custom FXDG |
| Harley-Davidson | 1983 | FX Low Rider FXSB |
| Harley-Davidson | 1981 | FX Super Glide Fat Bob FXEF |
| Harley-Davidson | 1981–1983 | FX Super Glide FXE |
| Harley-Davidson | 1981–1982 | FX Super Glide FXS |
| Harley-Davidson | 1981–1983 | FX Wide Glide FXWG |
| Harley-Davidson | 1981–1982 | Super Glide B80 FXB |
Sportster 7 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1978–1980 | Sportster 1000 XLCH-1000 |
| Harley-Davidson | 1981–1983 | Sportster 1000 XLH |
| Harley-Davidson | 1979–1980 | Sportster 1000 XLH-1000 |
| Harley-Davidson | 1981–1983 | Sportster Roadster 1000 XLS |
| Harley-Davidson | 1983 | Sportster Roadster 1000 XLX |
| Harley-Davidson | 1978 | Sportster Standard XLH-1000 |
| Harley-Davidson | 1983 | Sportster XR-1000 |
Super Glide 6 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1979–1980 | FX Super Glide Fat Bob FXEF-1200 |
| Harley-Davidson | 1979–1980 | FX Super Glide Fat Bob FXEF-80 |
| Harley-Davidson | 1977–1980 | FX Super Glide FXE-1200 |
| Harley-Davidson | 1983 | FX Super Glide FXS-80 |
| Harley-Davidson | 1977–1978 | Super Glide 1200 FX-1200 |
| Harley-Davidson | 1980 | Super Glide B80 FXB-80 |
Wide Glide 1 model
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1980 | FX Wide Glide FXWG-80 |
Related Products
View all →More from MCS
View all →Who are we? Leeds Harley-Davidson - Iron City Motorcycles
This product is fulfilled by Iron City Motorcycles, Leeds' authorised Harley-Davidson® dealer, serving the UK with a full range of Genuine Motorclothes®, dealer merchandise, and official Harley-Davidson parts & accessories — available for UK and international delivery.
From OEM Parts to retro lifestyle wear to aftermarket stockits we have what you need to keep you riding all year round.
Use our official OEM parts finder to browse our full Genuine Harley-Davidson® Parts and our associated approved aftermarket catalogues.