45063-72A Front Brake Master Cylinder Repair Kits
Fits: Big Twin | FX | Servi-Car | Sportst…
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Specifications
- Brand
- Daytona
- Part Number
- 769125
- OEM Reference
- 45063-72A
- Pack Quantity
- Each
- Category
- Handlebar Control Kits
- VAT Rate
- 20%
About This Product
Restore the performance of your front brakes with this Daytona master cylinder repair kit, designed for Big Twin, FX, Servi-Car, Sportster, and Touring models. This kit replaces OEM 45063-72A and contains all the internal components needed for a complete rebuild of the stock-style master cylinder. It is compatible with DOT 3, DOT 4, and DOT 5 brake fluids, though I always advise against mixing different types. Rebuilding the master cylinder is a vital part of brake maintenance, helping to eliminate spongy lever feel and ensuring consistent hydraulic pressure. This kit offers a cost-effective way to keep your Harley’s front braking system operating at its best for years to come.
Fitment
32 modelsBig Twin | FX | Servi-Car | Sportster | Touring
Softail 5 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1981 | BLACKLINE FXS |
| Harley-Davidson | 1981 | SUPER GLIDE FXEF |
| Harley-Davidson | 1981 | SUPER GLIDE FXE |
| Harley-Davidson | 1981 | SUPER GLIDE FXB |
| Harley-Davidson | 1981 | WIDE GLIDE FXWG |
Sportster 18 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1973 | 3AH3 Sportster Standard (1973) 3AH3 XLH Sportster Standard (1973) Sportster Standard XLH 3AH3 XLH-1000 |
| Harley-Davidson | 1974 | 3AH4 Sportster Standard (1974) 3AH4 XLH Sportster Standard (1974) Sportster Standard XLH 3AH4 XLH-1000 |
| Harley-Davidson | 1975 | 3AH5 Sportster Standard (1975) 3AH5 XLH Sportster Standard (1975) Sportster Standard XLH 3AH5 XLH-1000 |
| Harley-Davidson | 1976 | 3AH6 Sportster Standard (1976) 3AH6 XLH Sportster Standard (1976) Sportster Standard XLH 3AH6 XLH-1000 |
| Harley-Davidson | 1977 | 3AH7 Sportster Standard (1977) 3AH7 XLH Sportster Standard (1977) Sportster Standard XLH 3AH7 XLH-1000 |
| Harley-Davidson | 1978 | 3AH8 Sportster Standard (1978) 3AH8 XLH Sportster Standard (1978) Sportster Standard XLH 3AH8 XLH-1000 |
| Harley-Davidson | 1979 | 3AH9 Sportster 1000 (1979) 3AH9 XLH1000 Sportster 1000 (1979) Sportster 1000 XLH1000 3AH9 XLH-1000 |
| Harley-Davidson | 1980 | 3AJ0 Sportster 1000 (1980) 3AJ0 XLH1000 Sportster 1000 (1980) Sportster 1000 XLH1000 3AJ0 XLH-1000 |
| Harley-Davidson | 1973 | 4AH3 Sportster 1000 (1973) 4AH3 XLCH1000 Sportster 1000 (1973) Sportster 1000 XLCH1000 4AH3 XLCH-1000 |
| Harley-Davidson | 1974 | 4AH4 Sportster 1000 (1974) 4AH4 XLCH1000 Sportster 1000 (1974) Sportster 1000 XLCH1000 4AH4 XLCH-1000 |
| Harley-Davidson | 1975 | 4AH5 Sportster 1000 (1975) 4AH5 XLCH1000 Sportster 1000 (1975) Sportster 1000 XLCH1000 4AH5 XLCH-1000 |
| Harley-Davidson | 1976 | 4AH6 Sportster 1000 (1976) 4AH6 XLCH1000 Sportster 1000 (1976) Sportster 1000 XLCH1000 4AH6 XLCH-1000 |
| Harley-Davidson | 1977 | 4AH7 Sportster 1000 (1977) 4AH7 XLCH1000 Sportster 1000 (1977) Sportster 1000 XLCH1000 4AH7 XLCH-1000 |
| Harley-Davidson | 1978 | 4AH8 Sportster 1000 (1978) 4AH8 XLCH1000 Sportster 1000 (1978) Sportster 1000 XLCH1000 4AH8 XLCH-1000 |
| Harley-Davidson | 1979 | 4AH9 Sportster (1979) 4AH9 XLCH Sportster (1979) Sportster XLCH 4AH9 XLCH-1000 |
| Harley-Davidson | 1980 | 4AJ0 Sportster 1000 (1980) 4AJ0 XLCH1000 Sportster 1000 (1980) Sportster 1000 XLCH1000 4AJ0 |
| Harley-Davidson | 1981 | SPORTSTER XLS |
| Harley-Davidson | 1981 | Sportster 1100 (1987) CANH XLH1100 Sportster 1100 (1987) Sportster 1100 XLH1100 CANH |
Touring 9 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1981 | ELECTRA GLIDE CLASSIC WITH SIDECAR FLHC WITH SIDECAR |
| Harley-Davidson | 1981 | ELECTRA GLIDE SPORT FLHS |
| Harley-Davidson | 1981 | ELECTRA GLIDE STANDARD SHRINE FLH SHRINE |
| Harley-Davidson | 1981 | HERITAGE FLH-HERITAGE |
| Harley-Davidson | 1981 | Heritage Classic FLHC |
| Harley-Davidson | 1981 | Street Glide® FLHX |
| Harley-Davidson | 1981 | TOUR GLIDE FLT |
| Harley-Davidson | 1980–1981 | TOUR GLIDE CLASSIC FLTC |
| Harley-Davidson | 1981 | TOURING REVIVAL FLH |
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