OE Quality
60-Day Returns

Dorman M631023 Brake Master Cylinder
Reliable Brake Master Cylinder for Hyundai Veracruz
The Dorman M631023 brake master cylinder is engineered to restore proper brake hydraulics for Hyundai Veracruz models. Designed with precision, this aluminum master cylinder ensures consistent brake fluid pressure for safe and effective braking performance.
- Compatible with Hyundai Veracruz vehicles
- Master cylinder bore diameter of 1.0625 inches for accurate fluid displacement
- Constructed from durable aluminum material for corrosion resistance
- Includes 2 mounting holes for secure installation
- Comes with 1 master cylinder and 1 bleeder kit for maintenance
- Features 2 outlets with a rearward outlet thread size of M12 x 1.0
Product Details and Specifications
The Dorman M631023 brake master cylinder is designed without a brake booster, reservoir, push rod, or mounting hardware, focusing on core hydraulic functionality. Its aluminum construction provides strength and longevity while resisting corrosion common in brake system components. The 1.0625-inch bore diameter ensures proper hydraulic pressure is maintained, critical for the braking system's responsiveness. This master cylinder includes two outlets, with the secondary outlet thread diameter measuring 12 mm, facilitating compatibility with the Hyundai Veracruz's brake lines. The package includes a bleeder kit to assist with proper brake fluid bleeding during installation.
Common Applications and Problem Resolution
- Restores brake fluid pressure in Hyundai Veracruz brake systems
- Replaces worn or leaking master cylinders causing brake pedal issues
- Addresses brake fluid leaks from damaged or corroded master cylinders
- Improves brake pedal feel and responsiveness
- Solves issues related to inconsistent braking performance
Installation Notes and Tips
Installation requires removal of the old master cylinder and proper alignment using the two mounting holes. Since mounting hardware and reservoir are not included, reuse existing components or source separately. Use the included bleeder kit to remove air from the brake lines after installation to ensure optimal brake function. Verify compatibility with Hyundai Veracruz brake booster and reservoir before installation.
Quality Assurance and Warranty
Dorman manufactures this brake master cylinder to meet or exceed OEM standards for fit and function. The aluminum construction offers durability and corrosion resistance. While mounting hardware and additional components are not included, the product is backed by Dorman's quality control processes. Please refer to Dorman's warranty policy for specific coverage details.
| Brand | Dorman |
|---|---|
| Part Number | M631023 |
| Bleeder Hoses Included | No |
| Brake Booster Included | No |
| Master Cylinder Bore Diameter | 1.0625 |
| Master Cylinder Cap Included | No |
| 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; 1 Bleeder Kit |
| Push Rod Included | No |
| Rearward Outlet Size | M12 X 1.0 |
| Reservoir Included | No |
| Secondary Outlet Thread Diameter | 12 |
| Sensor Included | No |
This part fits 6 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2012 | Hyundai | Veracruz | N/A | |
| 2011 | Hyundai | Veracruz | N/A | |
| 2010 | Hyundai | Veracruz | N/A | |
| 2009 | Hyundai | Veracruz | N/A | |
| 2008 | Hyundai | Veracruz | N/A | |
| 2007 | Hyundai | Veracruz | 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.