Dorman M631044 Brake Master Cylinder

Reliable Brake Master Cylinder for Ford Focus and Transit Models

The Dorman M631044 brake master cylinder is engineered to provide consistent hydraulic pressure for your Ford Focus, Transit-150, Transit-250, Transit-350, Transit-350 HD, and Transit Connect. Designed with durable aluminum construction, this master cylinder ensures reliable braking performance without including additional components like mounting hardware or brake booster.

• Constructed from durable aluminum for long-lasting performance
• Compatible with Ford Focus and multiple Transit models
• Features a 1-inch master cylinder bore diameter for precise hydraulic control
• Includes two mounting holes for secure installation
• Equipped with two outlets and a removable reservoir type
• Secondary outlet thread diameter of 14 mm with a 1.0 thread pitch
• Rearward outlet size M14x1.0 for proper brake line connection

Product Details and Specifications

The Dorman M631044 brake master cylinder is designed specifically for select Ford vehicles, including the Focus and various Transit models. Its aluminum body offers corrosion resistance and strength, essential for maintaining brake system integrity. The master cylinder features a 1-inch bore diameter, which is critical for generating the correct hydraulic pressure needed for effective braking. It includes two mounting holes to ensure a secure fit in the brake system assembly. This unit does not come with a brake booster, mounting hardware, push rod, reservoir, bleeder hoses, or sensors, so it is intended for replacement of the master cylinder component only. The removable reservoir type allows for easier maintenance and fluid inspection. The two outlets and rearward outlet size of M14x1.0 with a 1.0 thread pitch provide compatibility with the brake lines on the specified Ford models.

Common Applications and Problem Resolution

• Restores proper hydraulic pressure in the brake system
• Replaces worn or leaking master cylinders causing brake fluid loss
• Addresses spongy or unresponsive brake pedal issues
• Eliminates brake fluid contamination by replacing damaged reservoirs
• Resolves brake system leaks related to master cylinder failure

Installation Notes and Tips

When installing the Dorman M631044 brake master cylinder, ensure the brake system is properly bled to remove air and maintain hydraulic integrity. Since mounting hardware and other components are not included, retain original parts or source compatible hardware separately. Verify the correct orientation of the two mounting holes and outlet connections to match your vehicle’s brake lines. Use appropriate thread sealant on outlet fittings if recommended by the vehicle manufacturer. Always follow Ford’s service manual guidelines for brake system maintenance and safety precautions.

Quality Assurance and Warranty

Dorman manufactures the M631044 brake master cylinder to meet or exceed OEM specifications for fit, form, and function. The aluminum construction provides durability and corrosion resistance under normal operating conditions. While specific warranty details are not provided here, Dorman typically offers limited warranties on their brake hydraulic components. Consult product documentation or the supplier for exact warranty terms and coverage.