Dorman M630626 Brake Master Cylinder

Reliable Brake Master Cylinder for Ford E-Series Vans

The Dorman M630626 Brake Master Cylinder is designed specifically for Ford E-150, E-250, and E-350 Super Duty models. This aluminum master cylinder includes a reservoir and sensor, ensuring precise brake hydraulics performance for your vehicle.

• Master cylinder bore diameter: 1.313 inches
• Constructed from durable aluminum material
• Includes reservoir and sensor for accurate brake fluid monitoring
• Equipped with three outlets for efficient brake fluid distribution
• Rearward outlet size: M12 x 1.5
• Secondary outlet thread diameters: M10 x 1.5 and M12 x 1.0
• Mounting hardware not included

Product Details and Specifications

The Dorman M630626 brake master cylinder is engineered to meet the hydraulic braking needs of Ford E-150, E-250, and E-350 Super Duty vans. Its 1.313-inch bore diameter provides consistent hydraulic pressure, while the aluminum construction offers corrosion resistance and long service life. The included reservoir allows for proper brake fluid storage, and the integrated sensor helps monitor fluid levels to maintain safe braking operation. With three outlets, including a rearward M12 x 1.5 outlet and secondary outlets with M10 x 1.5 and M12 x 1.0 thread sizes, this master cylinder supports complex brake line configurations common in these Ford models.

Common Applications and Problem Resolution

• Replaces worn or leaking brake master cylinders in Ford E-150, E-250, and E-350 Super Duty vans
• Addresses brake fluid leaks and pressure loss issues
• Restores proper brake pedal feel and responsiveness
• Solves sensor-related brake fluid level warning problems
• Supports brake system maintenance and upgrades

Installation Notes and Tips

Installation of the Dorman M630626 master cylinder requires careful attention to brake line connections and bleeding procedures. Since mounting hardware is not included, retain original fasteners or source appropriate replacements. Ensure all brake lines match the specified outlet thread sizes (M12 x 1.5 rearward, M10 x 1.5 and M12 x 1.0 secondary) for proper fitment. After installation, thoroughly bleed the brake system to remove air and verify sensor functionality before vehicle operation.

Quality Assurance and Warranty

Dorman manufactures the M630626 brake master cylinder to meet or exceed OEM standards for fit, form, and function. The aluminum construction and integrated sensor contribute to reliable brake system performance. This part is backed by Dorman's limited warranty, providing coverage against defects in materials and workmanship under normal use.