Put a fresh source of hydraulic braking pressure behind your pedal with the Dorman First Stop master cylinder for the 1999-2004 Ford Mustang, part number M390525. It is a direct-fit replacement for the 1999-2004 Ford Mustang with all engines. It converts pedal force into the hydraulic pressure that feeds the brake lines.
This unit is precision-engineered to replicate the original master cylinder's design, function and performance on the listed applications. It is built from new, high-quality materials for a safe, durable replacement.
- Precise replacement: the aluminum cylinder housing is constructed to match the casting material of the original part and is designed to perform similarly.
- Durable design: every rubber component uses a high-quality EPDM compound for resistance to glycol-based brake fluid.
- 100% new: made entirely from new materials for quality and safety.
- Strict specifications: built to meet rigorous SAE International standards.
Specifications: bore diameter 1 in · 2 outlets · rearward outlet size M10 x 1.0 · secondary outlet thread diameter M10 x 1.0 · primary outlet thread pitch 1 mm · reservoir and sensor included · mounting hardware not included. Country of origin: Taiwan.
Signs a master cylinder may need replacing include a soft or sinking brake pedal, brake fluid leaking at the cylinder, or a steadily dropping fluid level. Diagnose the cause before replacing anything, since lines, hoses or calipers can produce similar symptoms. If the original unit is at fault, this new master cylinder replaces it.
Interchange: 100-2175 · M-81108 · 13-2949 · 10-2949 · 130.61104 · 355-54077 · BRMC-51
1002175 · M81108 · 132949 · 102949 · 13061104 · 35554077 · BRMC51 · M901355 · 13486 · MC504810 · F9ZZ2140CA · M4029 · NM4029 · MC390525 · F134458 · MC134458
This part cross-references / interchanges with the following part numbers:
M901355, 100-2175, M-81108, 13486, 13-2949, 10-2949, 130.61104, MC504810, 355-54077, F9ZZ2140CA, M4029, NM4029, BRMC-51, MC390525, F134458, MC134458
