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Dorman M390184 Brake Master Cylinder
Reliable Brake Master Cylinder for Ford E-250, E-350, F-250, and F-350
The Dorman M390184 Brake Master Cylinder is engineered to restore proper brake hydraulics in select Ford trucks and vans. Designed specifically for Ford E-250 Econoline, E-350 Econoline, E-350 Econoline Club Wagon, F-250, and F-350 models, this master cylinder ensures consistent brake fluid pressure and reliable stopping power.
- Master cylinder bore diameter: 1.125 inches for precise hydraulic control
- Constructed from durable aluminum material for corrosion resistance
- Includes reservoir and sensor for integrated brake fluid monitoring
- Equipped with three outlets to support complex brake line configurations
- Rearward outlet size: 7/16-24 thread for secure fitting
- Secondary outlet thread diameters: 9/16-18 and 3/8-24 for versatile brake line connections
- Mounting hardware not included; designed for direct replacement
Product Details and Specifications
The Dorman M390184 brake master cylinder is a direct replacement part designed to meet the exact specifications of the original equipment on Ford E-250 Econoline, E-350 Econoline, E-350 Econoline Club Wagon, F-250, and F-350 vehicles. Its 1.125-inch bore diameter provides the correct hydraulic pressure needed for effective braking performance. The aluminum construction offers durability and resistance to corrosion, extending the service life of the component. This master cylinder comes complete with an integrated reservoir and sensor, allowing for accurate brake fluid level monitoring and system feedback. The three outlet ports accommodate the vehicle’s brake line layout, with rearward and secondary outlet thread sizes tailored for proper brake line attachment. Note that mounting hardware is not included, so reusing existing hardware or sourcing separately is necessary.
Common Applications and Problem Resolution
- Restores brake fluid pressure in Ford E-250 and E-350 Econoline vans
- Replaces worn or leaking master cylinders in Ford F-250 and F-350 trucks
- Addresses brake pedal sinking or sponginess due to master cylinder failure
- Eliminates brake fluid leaks from damaged or corroded master cylinder bodies
- Resolves brake warning light activation caused by faulty fluid level sensors
Installation Notes and Tips
- Ensure compatibility with Ford E-250 Econoline, E-350 Econoline, E-350 Club Wagon, F-250, and F-350 models before installation
- Bleed the brake system thoroughly after installation to remove air and ensure proper brake function
- Reuse existing mounting hardware or acquire appropriate fasteners as they are not included
- Inspect brake lines and fittings for wear or damage during installation
- Verify sensor connections to maintain brake fluid level monitoring
Quality Assurance and Warranty
Dorman manufactures the M390184 brake master cylinder to meet or exceed OEM standards for fit, form, and function. The aluminum construction and integrated sensor contribute to reliable brake system performance. While mounting hardware is not included, the part is designed for straightforward installation on compatible Ford models. Warranty coverage details should be confirmed with the point of purchase or manufacturer documentation.
| Brand | Dorman |
|---|---|
| Part Number | M390184 |
| Master Cylinder Bore Diameter | 1.125 |
| Master Cylinder Material | Aluminum |
| Mounting Hardware Included | No |
| Number of Outlets | 3 |
| Package Contents | Master Cylinder |
| Rearward Outlet Size | 7/16-24 |
| Reservoir Included | Yes |
| Secondary Outlet Thread Diameter | 9/16-18 & 3/8-24 |
| Sensor Included | Yes |
This part fits 16 vehicles. Search below:
| Year | Make | Model | Body Type | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|
| 1996 | Ford | E-250 Econoline | N/A | Fits vehicles with Cruise Control and features a 1.125 inch bore. | ||
| 1996 | Ford | E-350 Econoline | N/A | Fits vehicles with Cruise Control and features a 1.125 inch bore. | ||
| 1996 | Ford | E-350 Econoline Club Wagon | N/A | Fits vehicles with Cruise Control and features a 1.125 inch bore. | ||
| 1995 | Ford | E-250 Econoline | N/A | Fits vehicles with Cruise Control and features a 1.125 inch bore. | ||
| 1995 | Ford | E-350 Econoline | N/A | Fits vehicles with Cruise Control and features a 1.125 inch bore. | ||
| 1995 | Ford | E-350 Econoline Club Wagon | N/A | Fits vehicles with Cruise Control and features a 1.125 inch bore. | ||
| 1995 | Ford | F-250 | N/A | Fits vehicles with Cruise Control and features a 1.125 inch bore. | ||
| 1995 | Ford | F-350 | GAS | N/A | Fits vehicles with Cruise Control and features a 1.125 inch bore. | |
| 1995 | Ford | F-350 | DIESEL | N/A | Fits vehicles with Cruise Control and features a 1.125 inch bore. | |
| 1994 | Ford | E-250 Econoline | N/A | Fits vehicles with Cruise Control and features a 1.125 inch bore. | ||
| 1994 | Ford | E-350 Econoline | N/A | Fits vehicles with Cruise Control and features a 1.125 inch bore. | ||
| 1994 | Ford | E-350 Econoline Club Wagon | N/A | Fits vehicles with Cruise Control and features a 1.125 inch bore. | ||
| 1994 | Ford | F-250 | N/A | Fits vehicles with Cruise Control and features a 1.125 inch bore. | ||
| 1994 | Ford | F-350 | N/A | Fits vehicles with Cruise Control and features a 1.125 inch bore. | ||
| 1993 | Ford | F-350 | N/A | w/Dual Rear Wheels (DRW); w/Cruise Control; Bore: 1.125 In. | ||
| 1993 | Ford | F-350 | Crew Cab Pickup | N/A | For vehicles with Single Rear Wheel (SRW) and Cruise Control, the Bore size is 1.125 inches. |
* 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.