HomeBrake > Brake HydraulicsDorman M630799 Brake Master Cylinder
Part #: M630799

Dorman M630799 Brake Master Cylinder

⚙️ 3 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Ford, Freestar
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Reliable Brake Master Cylinder for Ford Freestar

The Dorman M630799 brake master cylinder is engineered to restore proper brake hydraulics in your Ford Freestar. Designed with precision, this aluminum master cylinder ensures consistent brake fluid pressure for safe and effective braking performance.

  • Master cylinder bore diameter: 1.063 inches for accurate fluid displacement
  • Constructed from durable aluminum material for corrosion resistance
  • Includes three outlets to support complex brake line configurations
  • Rearward outlet size: M12 x 1.0 thread for secure connections
  • Secondary outlet thread diameters: M12 x 1.5 and 3/8-24 for versatile fitment
  • Does not include reservoir or sensor, designed for direct replacement

Product Details and Specifications

The Dorman M630799 brake master cylinder is a direct replacement part specifically compatible with Ford Freestar models. Its 1.063-inch bore diameter is calibrated to maintain proper hydraulic pressure within the brake system. Manufactured from aluminum, this master cylinder offers resistance to rust and wear, contributing to long-term reliability. The unit features three outlets, including a rearward outlet with an M12 x 1.0 thread and secondary outlets with M12 x 1.5 and 3/8-24 thread sizes, allowing for precise brake line connections. This part does not come with a reservoir or sensor, making it suitable for vehicles where these components are retained from the original assembly.

Common Applications and Problem Resolution

  • Restores brake pressure in Ford Freestar brake hydraulic systems
  • Replaces worn or leaking master cylinders causing brake fluid loss
  • Addresses spongy or unresponsive brake pedal issues
  • Eliminates brake fluid contamination due to internal cylinder wear
  • Supports brake system repairs requiring a three-outlet master cylinder

Installation Notes and Tips

When installing the Dorman M630799 brake master cylinder on a Ford Freestar, ensure the brake fluid reservoir and sensors are compatible and properly connected, as these are not included with the part. Bleed the brake system thoroughly after installation to remove air and restore optimal brake pedal feel. Verify all outlet connections match the specified thread sizes (M12 x 1.0, M12 x 1.5, and 3/8-24) to prevent leaks. Professional installation is recommended to maintain brake system integrity and safety.

Quality Assurance and Warranty

Dorman manufactures the M630799 brake master cylinder to meet or exceed OEM standards 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 manufacturer for exact warranty terms.

BrandDorman
Part NumberM630799
Mounting Hardware IncludedNo
Master Cylinder Bore Diameter1.063
Master Cylinder MaterialAluminum
Reservoir IncludedNo
Sensor IncludedNo
Number of Outlets3
Package ContentsMaster cylinder
Rearward Outlet SizeM12 x 1.0
Secondary Outlet Thread DiameterM12 x 1.5 & 3/8-24

This part fits 3 vehicles. Search below:

YearMakeModelPositionNotes
2007FordFreestarN/ATraction Control - Bore Size: 1.0625 Inches
2006FordFreestarN/ATraction Control - Bore Size: 1.0625 Inches
2005FordFreestarN/AFrom 5/30/05; 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:

10-3442130.651056F2Z2140CABRMC183F140085M4130MC390919

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.