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Dorman M390534 Brake Master Cylinder
Reliable Brake Master Cylinder for Chrysler, Dodge, and Plymouth
The Dorman M390534 brake master cylinder is designed to restore proper brake hydraulics in Chrysler, Dodge, and Plymouth vehicles. Engineered with an aluminum body and integrated reservoir and sensor, this master cylinder ensures consistent brake performance for models like the Grand Caravan, Grand Voyager, and Town & Country.
Key Features of the Dorman M390534 Brake Master Cylinder
- Master cylinder bore diameter: 1 inch for precise hydraulic pressure
- Durable aluminum construction for corrosion resistance and longevity
- Includes reservoir and sensor for complete brake system integration
- Two outlets with 7/16-24 thread size for rearward and secondary connections
- Compatible with Chrysler Grand Caravan, Dodge Grand Voyager, and Plymouth Town & Country
- Mounting hardware not included, allowing for flexible installation options
Detailed Product Description
The Dorman M390534 brake master cylinder is a critical component in the brake hydraulics system, responsible for converting pedal force into hydraulic pressure. Its 1-inch bore diameter provides the necessary volume and pressure for effective braking. Constructed from aluminum, this master cylinder offers enhanced durability and resistance to corrosion compared to traditional cast iron units. The included reservoir and sensor facilitate fluid level monitoring and integration with the vehicle’s brake system. Featuring two outlets with standardized 7/16-24 thread sizes, it supports rearward and secondary brake line connections, ensuring compatibility with the brake lines on Chrysler, Dodge, and Plymouth minivans such as the Grand Caravan, Grand Voyager, and Town & Country.
Common Issues Addressed by This Brake Master Cylinder
- Brake pedal sinking or sponginess due to internal leaks
- Brake fluid leaks around the master cylinder or reservoir
- Inconsistent brake pressure affecting stopping performance
- Warning lights triggered by faulty brake fluid sensors
- Brake system failure caused by worn or damaged master cylinder components
Installation Notes and Tips
- Ensure brake system is fully depressurized before removal
- Bleed the brake system thoroughly after installation to remove air
- Verify compatibility with vehicle make and model before installation
- Use appropriate brake fluid as specified by the vehicle manufacturer
- Mounting hardware is not included; retain original hardware or source separately
Quality Assurance and Warranty Information
Dorman manufactures the M390534 brake master cylinder to meet or exceed OEM specifications for Chrysler, Dodge, and Plymouth vehicles. The aluminum construction and integrated sensor contribute to reliable brake system performance. While specific warranty details vary, Dorman typically offers a limited warranty covering defects in materials and workmanship. Refer to Dorman’s official documentation for exact warranty terms.
| Brand | Dorman |
|---|---|
| Part Number | M390534 |
| Master Cylinder Bore Diameter | 1 |
| Master Cylinder Material | Aluminum |
| Mounting Hardware Included | No |
| Number of Outlets | 2 |
| Package Contents | Master Cylinder |
| Rearward Outlet Size | 7/16-24 |
| Reservoir Included | Yes |
| Secondary Outlet Thread Diameter | 7/16-24 |
| Sensor Included | Yes |
This part fits 11 vehicles. Search below:
| Year | Make | Model | Drive Type | Wheel Base | Position | Notes |
|---|---|---|---|---|---|---|
| 2000 | Chrysler | Grand Voyager | 119.3" | N/A | Not compatible with vehicles equipped with Traction Control. | |
| 2000 | Chrysler | Town & Country | 119.0" | N/A | 1" bore size brake master cylinder for vehicles without traction control. | |
| 2000 | Dodge | Grand Caravan | 119.0" | N/A | 1" bore size brake master cylinder for vehicles without traction control. | |
| 2000 | Plymouth | Grand Voyager | 119.3" | N/A | 1" bore size brake master cylinder for vehicles without traction control. | |
| 1999 | Chrysler | Town & Country | AWD | N/A | 1" bore size brake master cylinder for vehicles without traction control. | |
| 1999 | Dodge | Grand Caravan | AWD | N/A | 1" bore size brake master cylinder for vehicles without traction control. | |
| 1998 | Chrysler | Town & Country | AWD | N/A | 1" bore size brake master cylinder for vehicles without traction control. | |
| 1998 | Dodge | Grand Caravan | AWD | N/A | 1" bore size brake master cylinder for vehicles without traction control. | |
| 1997 | Chrysler | Town & Country | AWD | N/A | 1" bore size brake master cylinder for vehicles without traction control. | |
| 1997 | Dodge | Grand Caravan | AWD | N/A | 1" bore size brake master cylinder for vehicles without traction control. | |
| 1997 | Plymouth | Grand Voyager | AWD | N/A | 1" bore size brake master cylinder for vehicles without traction control. |
* 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.