/live/media/DB/DB_H21784_Fro.jpg)
Will it fit your vehicle?
Confirm before you buy. Free return shipping if it doesn't fit.
Dorman H21784 Brake Hydraulic Hose - Front Left or Front Right
| Brand | Dorman H21784 |
|---|---|
| Position | Front Left |
| Bracket Included | No |
| Color | Black |
| Describe Type | Flexible Hose |
| End 1 Fitting Material | Treated Steel |
| End 1 Fitting Type | Male |
| End 1 Thread Diameter | 3/8 in-24 |
| End 2 Fitting Inside Diameter | 3/8 in-24 |
| End 2 Fitting Material | Treated Steel |
| End 2 Fitting Type | Female |
| Gasket Or Seal Included | No |
| Hose Material | EPDM Rubber |
| Jacket Included | No |
| Mounting Hardware Included | No |
| Outer Sleeve Material | Rubber |
| Overall Length | 13.75 |
| Package Contents | 1 Brake Hose |
| Fits | Ford and Mercury · 4 vehicles |
OE-style replacement. Precision-engineered to match original fit, function, and performance.
Flexible hose design. EPDM rubber construction helps deliver dependable braking performance.
Treated steel fittings. Male and female ends provide a secure hydraulic connection.
Cross-references Centric Parts 150.61002, Raybestos Brakes BH21784 and Sunsong 2204534 for the same application. See all 9.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Dorman H21784 Brake Hydraulic Hose
Dorman H21784 is a brake hydraulic hose engineered to match the fit, function, and performance of the original hose on specific vehicles and positions. It is built for 1957-1958 Mercury Colony Park front left and front right applications, with the correct treated steel end fittings and flexible EPDM rubber construction for a direct replacement during brake service.
Key Features
- Fits 1957-1958 Mercury Colony Park, front left
- Fits 1957-1958 Mercury Colony Park, front right
- Flexible hose design with black EPDM rubber outer sleeve
- Treated steel end fittings with male and female connections
- 3/8 in-24 thread diameter at both ends
- Overall length: 13.75 in
- Direct replacement brake hose for hydraulic brake repair
Detailed Description
This Dorman brake hydraulic hose is made for specific Mercury Colony Park brake hose locations and follows the original hose layout for proper routing and connection. The flexible hose construction helps maintain brake fluid transfer while the treated steel fittings provide the correct interface at the vehicle connection points. Part number H21784 is a practical OE-style replacement for restoring brake line integrity on classic Mercury Colony Park front brake applications.
This part cross-references Raybestos Brakes BH21784 for the same application.
What It Helps Fix
- Cracked or deteriorated brake hose rubber
- Brake fluid seepage at hose ends
- Restricted hydraulic flow from an aging hose
- Soft or inconsistent brake pedal feel caused by hose wear
- Brake service needs on 1957-1958 Mercury Colony Park front brake positions
Installation Notes and Tips
Verify the vehicle position before installation: this hose is listed for front left and front right use on 1957-1958 Mercury Colony Park models. Inspect the surrounding brake lines, fittings, and mounting points before replacing the hose, and confirm thread size and end style match the original setup. Because mounting hardware, brackets, and seals are not included, reuse or source the required related components as needed during brake repair.
Quality Assurance
Dorman manufactures this brake hydraulic hose to match original fit and function for the listed applications, supporting a reliable repair on classic Mercury Colony Park brake systems. The hose uses EPDM rubber and treated steel fittings for durable service in hydraulic brake use.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1958 | Mercury | Colony Park | Front Left | — |
| 1958 | Mercury | Colony Park | Front Right | — |
| 1957 | Mercury | Colony Park | Front Left | — |
| 1957 | Mercury | Colony Park | Front Right | — |
| No rows match your filter. | ||||