Dorman - First Stop Brake Master Cylinder P/N:M630623
Help maintain dependable hydraulic braking with the Dorman First Stop Brake Master Cylinder, part number M630524, which converts force from the brake pedal into the hydraulic pressure that applies your brakes. It is listed for several models from one make, among them the 2009 Ford F-250, 2008-2010 Ford F-250 Super Duty and 2008-2010 Ford F-350 Super Duty. It is a direct-fit replacement for the listed applications; see the Buyer's Guide tab for the full list.
Dorman precision-engineers this master cylinder to replicate the design, function and performance of the original unit on the listed applications. It is built from new, high-quality materials for a safe, durable replacement.
Signs a master cylinder may need replacing include a soft or spongy pedal, a pedal that sinks under steady pressure, and brake fluid leaks. If a failing master cylinder is the cause, this unit replaces it. A master cylinder is typically bench-bled before installation, and the brake system is bled afterward; follow the vehicle service information for the correct procedure.
Interchange: 13-3892 · 10-3794 · 10-3892 · 130.65114 · 130.65127 · 355-54243 · BRMC-122
133892 · 103794 · 103892 · 13065114 · 13065127 · 35554243 · BRMC122 · 8C3Z2140D · 8C3Z2140DB · 8C3Z2140K · NM4155 · MC391188 · F144430 · MC142439 · MC144430
This part cross-references / interchanges with the following part numbers:
Is this the right Ford F-250 master cylinder for my truck?
It is listed for the 2009 Ford F-250 and the 2008-2010 Ford F-250 Super Duty, among other applications. Check the Buyer's Guide tab to confirm your exact truck.
What does a brake master cylinder do?
It converts force from the brake pedal into hydraulic pressure and sends brake fluid through the lines to the brakes at each wheel.
What are signs a master cylinder may need replacing?
Common signs include a soft or spongy pedal, a pedal that slowly sinks under steady pressure, and brake fluid leaks. These can have other causes, so diagnose the brake system before replacing parts.
What are the rubber components made of?
All rubber components use a high-quality EPDM compound, which resists glycol-based brake fluid.
Does the master cylinder need to be bled when installed?
Yes. A master cylinder is typically bench-bled before installation, and the brake system is bled afterward. Follow the vehicle service information for the correct procedure.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.