507425 Caliper seal kit, front
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
- 507425
- OEM Reference
- 44277-74
- Pack Quantity
- Sold as kit
- Category
- Brake Caliper Repair Kits
- VAT Rate
- 20%
About This Product
Front caliper seal kit from MCS. Fits 1974 to 1977 XL Sportster and FX models. Replaces OEM part 44277-74. Heat and old fluid perish these seals. You end up with a spongy lever and fluid weeping past the piston. This kit covers one caliper. Clean the bore and piston thoroughly before assembly. Any pitting in the bore will tear the new seals straight away. Sold as a kit.
Manufacturer part number: 507425.
Fitment
5 models74-77 XL Sportster; FX
Low Rider 1 model
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1977 | FX Super Glide FXS-1200 |
Sportster 2 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1975–1977 | Sportster 1000 XLCH-1000 |
| Harley-Davidson | 1975–1977 | Sportster Standard XLH-1000 |
Super Glide 2 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1976–1977 | FX Super Glide FXE-1200 |
| Harley-Davidson | 1976–1977 | Super Glide 1200 FX-1200 |
Related Products
View all →
MCS
Caliper seal kit, front & rear
MCS
Caliper piston & seal kit, front
MCS
Caliper seal kit for one piston
All Balls
Balls, caliper rebuild kit. Front DD
All Balls
Balls, caliper rebuild kit. Front
All Balls
Balls, caliper rebuild kit. Front SD
All Balls
Balls, Caliper Rebuild Kit
All Balls
Balls, caliper rebuild kit. Rear
More from MCS
View all →
Wheel hub spacer front 2.424"
Wheel hub spacer, inner. Front. 1.316"
Tapered bearing & race kit
Cam driven gear. 34T
Pushrod cover seal kit, blue silicone
Rivet set for early saddlebags & tour-pak
OEM style main wiring harness. XLCH
OEM style main wiring harness. XLCH
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.