Dorman - First Stop Brake Master Cylinder P/N:M390296
Dorman M390450 brake master cylinder for the 1997-2003 Ford Escort and other vehicles turns pedal force into hydraulic pressure for the brakes.
A brake pedal that feels soft or sinks, or fluid seeping from the cylinder body, can mean this master cylinder is worn, though a leaking brake line or a worn caliper can also be behind those signs.
It fits the 1997-2003 Ford Escort and the 1997-1999 Mercury Tracer, and each takes one. This listing is one master cylinder.
Fit and size
Build and materials
One master cylinder with its reservoir and sensor. Mounting hardware is not included, so plan on new hardware, as the old pieces may not be reusable.
Interchange: 83-34088 · 100-2159 · M-81088 · 13-3335 · 10-2859 · 130.61088 · 355-54066
18M830 · M901064 · 13468 · MC500450 · F7CZ2140FD · M55105 · NM55105A · MC390450 · F134326 · MC134326
This part cross-references / interchanges with the following part numbers:
Is Dorman M390450 a 1997-2003 Ford Escort master cylinder?
Yes. Dorman M390450 fits the 1997-2003 Ford Escort, and that car takes one.
Does this Dorman master cylinder come with its reservoir?
Yes. Dorman M390450 includes the reservoir and a sensor. Mounting hardware is not included.
Is this Dorman brake master cylinder made of aluminum?
Yes. The cylinder housing is aluminum, and all rubber components are EPDM compound that resists glycol-based brake fluid.
Could a soft brake pedal mean this master cylinder is worn?
It can, as a soft or sinking pedal or fluid seeping around the cylinder body can be signs of wear; a shop can test it, so have the brakes checked promptly.
What thread size are the outlets on the Dorman M390450?
The rearward and secondary outlets are M10 x 1.0, the primary outlet thread pitch is 1 mm, and the bore diameter is 0.938 in.
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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.