The brake master cylinder sits at the heart of the hydraulic braking system, converting the force from your brake pedal into the fluid pressure that operates the brakes. The Dorman First Stop Brake Master Cylinder M390394 drops in as a direct-fit replacement for the 1997-2002 Ford E-250 Econoline and the 1997-1998 Ford E-350 Econoline and E-350 Econoline Club Wagon (All engines), engineered to match the design, function, and performance of the original unit on those applications.
- Aluminum housing: the cylinder housing is built to match the casting material of the original part for similar performance.
- Durable sealing: the rubber components use a high-quality EPDM compound for resistance to glycol-based brake fluid.
- 100% new: made entirely of new materials — not remanufactured — and built to meet rigorous SAE International standards.
- Specs: aluminum construction, three outlets, a 1.25 in bore, an M18 x 1.5 rearward outlet, and 9/16-18 & 3/8-24 secondary outlet threads.
The reservoir and sensor are included. Mounting hardware is not included — consult the vehicle service information for the correct fasteners and whether they may be reused. Signs the original may need replacing include a pedal that slowly sinks under steady pressure, a spongy pedal, or brake fluid loss; diagnose the cause first, and if a failed master cylinder is behind it, this unit replaces it. Country of origin: Taiwan.
Interchange: 18M814 · 83-42060 · 8342060 · M901049 · 100-2515 · 1002515 · M-85060 · M85060 · 13282 · 13-2798 · 132798 · 10-2798 · 102798 · 10-2860 · 102860 · 10-3441 · 103441 · 130.65060 · 131.65060 · MC251730 · 355-54179 · 35554179 · F7UZ2140PB · F8UZ2140CA · YC2Z2140CA · M3048 · M4058 · NM3048 · NM4058 · BRMC-74 · BRMC74 · MC390394 · F140640 · F140888 · MC140888 · Manufacturer part number M390394
This part cross-references / interchanges with the following part numbers:
18M814, 83-42060, M901049, 100-2515, M-85060, 13282, 13-2798, 10-2798, 10-2860, 10-3441, 130.65060, 131.65060, MC251730, 355-54179, F7UZ2140PB, F8UZ2140CA, YC2Z2140CA, M3048, M4058, NM3048, NM4058, BRMC-74, MC390394, F140640, F140888, MC140888
