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Dorman M631038 Brake Master Cylinder
Reliable Brake Master Cylinder for Ford Transit Models
The Dorman M631038 Brake Master Cylinder is engineered to provide consistent hydraulic pressure for your Ford Transit series vehicles. Designed specifically for models including the E-Transit, Transit-150, Transit-250, Transit-350, Transit-350 HD, and Transit Custom, this master cylinder ensures precise brake control and safety.
- Compatible with Ford E-Transit, Transit, Transit-150, Transit-250, Transit-350, Transit-350 HD, and Transit Custom
- Master cylinder bore diameter of 1.125 inches for optimal hydraulic performance
- Includes a removable reservoir and master cylinder cap for easy maintenance
- Constructed from durable aluminum material for corrosion resistance and longevity
- Equipped with two mounting holes and two outlets, including a rearward outlet sized M14 x 1.5
- Integrated sensor included for brake system monitoring
Product Details and Specifications
The Dorman M631038 brake master cylinder is crafted from aluminum, providing a lightweight yet robust component that resists corrosion over time. It features a 1.125-inch bore diameter, which is critical for maintaining proper hydraulic pressure within the brake system. This master cylinder includes a removable reservoir and a master cylinder cap, facilitating fluid inspection and replacement. The unit has two mounting holes for secure installation and two outlets, including a secondary outlet with a 14 mm thread diameter and a rearward outlet sized M14 x 1.5. Additionally, the integrated sensor supports vehicle brake system diagnostics.
Common Applications and Problem Resolution
- Restores proper brake pedal feel and hydraulic pressure in Ford Transit vehicles
- Addresses brake fluid leaks caused by worn or damaged master cylinders
- Eliminates spongy or unresponsive brake pedal issues
- Replaces faulty sensors that affect brake system warning lights
- Supports brake system maintenance for improved vehicle safety
Installation Notes and Tips
Installation requires removal of the old master cylinder and proper bleeding of the brake system to remove air. The Dorman M631038 does not include mounting hardware or push rod, so reuse existing components or acquire separately if needed. Ensure the reservoir is filled with the correct brake fluid and securely attach the master cylinder cap. Verify sensor connections are properly seated to maintain brake system monitoring functionality.
Quality Assurance and Warranty
Dorman manufactures this brake master cylinder to meet or exceed OEM specifications for fit, form, and function. The aluminum construction offers durability and resistance to corrosion. This part includes a sensor to support vehicle diagnostics. While mounting hardware and push rod are not included, the product is backed by Dorman's quality standards. Please consult Dorman's warranty policy for specific coverage details.
| Brand | Dorman |
| Part Number | M631038 |
| Bleeder Hoses Included | No |
| Brake Booster Included | No |
| Master Cylinder Bore Diameter | 1.125 |
| Master Cylinder Cap Included | Yes |
| Master Cylinder Material | Aluminum |
| Mounting Bracket Included | No |
| Mounting Hardware Included | No |
| Mounting Hole Quantity | 2 |
| Number of Outlets | 2 |
| Package Contents | 1 Master Cylinder |
| Push Rod Included | No |
| Rearward Outlet Size | M14 x 1.5 |
| Reservoir Included | Yes |
| Reservoir Type | Removable |
| Secondary Outlet Thread Diameter | 14 |
| Sensor Included | Yes |
This part fits 38 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2024 | Ford | E-Transit | N/A | |
| 2024 | Ford | Transit | N/A | |
| 2024 | Ford | Transit-150 | N/A | |
| 2024 | Ford | Transit-250 | N/A | |
| 2024 | Ford | Transit-350 | N/A | |
| 2024 | Ford | Transit-350 HD | N/A | |
| 2023 | Ford | E-Transit | N/A | |
| 2023 | Ford | Transit | N/A | |
| 2023 | Ford | Transit-150 | N/A | |
| 2023 | Ford | Transit-250 | N/A | |
| 2023 | Ford | Transit-350 | N/A | |
| 2023 | Ford | Transit-350 HD | N/A | |
| 2022 | Ford | E-Transit | N/A | |
| 2022 | Ford | Transit | N/A | |
| 2022 | Ford | Transit-150 | N/A | |
| 2022 | Ford | Transit-250 | N/A | |
| 2022 | Ford | Transit-350 | N/A | |
| 2022 | Ford | Transit-350 HD | N/A | |
| 2021 | Ford | Transit | N/A | |
| 2021 | Ford | Transit-150 | N/A | |
| 2021 | Ford | Transit-250 | N/A | |
| 2021 | Ford | Transit-350 | N/A | |
| 2021 | Ford | Transit-350 HD | N/A | |
| 2020 | Ford | Transit | N/A | |
| 2020 | Ford | Transit-150 | N/A | |
| 2020 | Ford | Transit-250 | N/A | |
| 2020 | Ford | Transit-350 | N/A | |
| 2020 | Ford | Transit-350 HD | N/A | |
| 2019 | Ford | Transit | N/A | |
| 2019 | Ford | Transit-150 | N/A | |
| 2019 | Ford | Transit-250 | N/A | |
| 2019 | Ford | Transit-350 | N/A | |
| 2019 | Ford | Transit-350 HD | N/A | |
| 2018 | Ford | Transit | N/A | |
| 2017 | Ford | Transit | N/A | |
| 2017 | Ford | Transit Custom | N/A | |
| 2016 | Ford | Transit | N/A | |
| 2015 | Ford | Transit | N/A |
* 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.