OE Quality
60-Day Returns

Dorman H38903 Brake Hydraulic Hose - Front Right
Reliable Brake Hydraulic Hose for Ford and Mazda Vehicles
The Dorman H38903 brake hydraulic hose is designed to provide dependable brake fluid transfer for select Ford and Mazda models. Engineered with durable materials, this flexible hose ensures consistent braking performance and safety.
- Compatible with Ford B3000, B4000, Explorer, Ranger and Mazda Navajo models
- Constructed with EPDM rubber hose and black rubber outer sleeve for durability
- Features treated steel fittings: banjo fitting on one end and female fitting on the other
- Includes necessary gaskets for proper sealing
- Overall length of 20.25 inches with 11.88 inches axis 1 length for precise fitment
Durable Construction and Precise Fitment
This Dorman brake hydraulic hose (part number H38903) is built with an EPDM rubber hose core that resists heat, ozone, and brake fluid degradation. The black rubber outer sleeve adds abrasion resistance, extending the hose's service life. Both ends feature treated steel fittings—one banjo type with a 0.38-inch thread diameter and one female fitting with a 3/8 in-24 inside diameter—ensuring secure connections to your vehicle's brake system. The included gaskets help maintain a leak-free seal during installation. With an overall length of 20.25 inches, this flexible hose is designed to fit the brake systems of Ford B3000, B4000, Explorer, Ranger, and Mazda Navajo models accurately.
Applications and Common Issues Addressed
- Replacement of worn or cracked brake hydraulic hoses
- Resolving brake fluid leaks caused by damaged fittings or seals
- Restoring proper brake fluid pressure and pedal feel
- Addressing hose swelling or bulging under pressure
- Upgrading to a hose with improved material resistance for extended durability
Installation Notes and Tips
When installing the Dorman H38903 brake hydraulic hose, ensure all old hose components and fittings are fully removed. Use the included gaskets to prevent leaks at connection points. Avoid twisting or kinking the hose during installation to maintain flexibility and integrity. Verify that the hose length and fitting types match your vehicle’s brake system specifications. After installation, bleed the brake system thoroughly to remove any air and restore proper brake function.
Quality Assurance and Warranty Information
Dorman manufactures the H38903 brake hydraulic hose to meet or exceed OEM standards for fit, form, and function. The use of treated steel fittings and EPDM rubber materials ensures resistance to corrosion and brake fluid exposure. This part is backed by Dorman’s limited warranty, providing coverage against defects in material and workmanship under normal use.
| Brand | Dorman |
| Part Number | H38903 |
| Axis 1 Length | 11.88 |
| Bracket Included | No |
| Color | Black |
| Describe Type | Flexible Hose |
| End 1 Fitting Material | Treated Steel |
| End 1 Fitting Type | Banjo |
| End 1 Thread Diameter | 0.38 in |
| End 2 Fitting Inside Diameter | 3/8 in-24 |
| End 2 Fitting Material | Treated Steel |
| End 2 Fitting Type | Female |
| Gasket Or Seal Included | Yes |
| Hose Material | EPDM Rubber |
| Mounting Hardware Included | No |
| Outer Sleeve Material | Rubber |
| Overall Length | 20.25 |
| Package Contents | 1 Brake Hose; Gaskets |
This part fits 8 vehicles. Search below:
| Year | Make | Model | Drive Type | Position | Notes |
|---|---|---|---|---|---|
| 1994 | Mazda | B3000 | 4WD | Front Right | |
| 1994 | Mazda | B4000 | 4WD | Front Right | |
| 1992 | Ford | Explorer | Front Right | To 1/92 | |
| 1992 | Ford | Ranger | 4WD | Front Right | To 1/01/92 |
| 1992 | Mazda | Navajo | Front Right | ||
| 1991 | Ford | Explorer | Front Right | ||
| 1991 | Ford | Ranger | 4WD | Front Right | |
| 1991 | Mazda | Navajo | Front Right |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.