Dorman - First Stop Brake Master Cylinder P/N:M630293
Turn pedal effort into hydraulic pressure for your brake system with the Dorman First Stop Brake Master Cylinder M390183. It fits many vehicles, among them the 1994-2003 Ford F-150, the 1994-1996 Ford Bronco and the 2004 Ford F-150 Heritage. See the Buyer's Guide tab for the full list. It is a new, direct-fit replacement for the listed applications.
The master cylinder turns the force you put on the brake pedal into hydraulic pressure and sends it through the brake lines to the wheels. If a worn or leaking master cylinder is behind a soft pedal on your vehicle, this unit replaces it.
Specifications: aluminum housing, 1.063-inch bore diameter, two outlets and an M18 x 1.5 rearward outlet. The reservoir and a sensor are included. Mounting hardware is not included. Country of origin: China.
Follow the vehicle service information during installation, including bleeding the brake system afterward.
Is this the right 1994-2003 Ford F-150 master cylinder?
Yes. It is listed as a direct-fit application for the 1994-2003 Ford F-150 and the 2004 Ford F-150 Heritage. The Buyer's Guide tab shows every vehicle it fits.
Will it work as a 1994-1996 Ford Bronco master cylinder?
Yes. The 1994-1996 Ford Bronco is among its listed applications. Check the Buyer's Guide tab for the full list.
What comes in the box?
The master cylinder comes with its reservoir and a sensor. Mounting hardware is not included.
What are the key specifications?
It has an aluminum housing, a 1.063-inch bore diameter, two outlets and an M18 x 1.5 rearward outlet. Its rubber components use an EPDM compound that resists glycol-based brake fluid.
What are signs a brake master cylinder may need replacing?
Common signs are a soft or sinking brake pedal, fluid leaking at the master cylinder or a dropping fluid level. Diagnose the brake system before you replace parts.
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.