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Dorman - First Stop Brake Master Cylinder P/N:M18000
$132.99
Turn brake-pedal effort into the hydraulic pressure that operates your brake system with the Dorman – First Stop Brake Master Cylinder M18000. It's engineered to reproduce the original master cylinder's design, function, and performance on the listed applications, which span a wide range of vintage 1948-1960 Ford, Mercury, Edsel, Checker, AMC, and Nash models.
- 100% new: built entirely from new materials — not remanufactured.
- Cast-iron housing: constructed to match the casting material of the original part for similar performance.
- EPDM rubber components: made from a high-quality EPDM compound that resists glycol-based brake fluid.
- SAE standards: made to meet rigorous SAE International standards.
It features a 1 in bore and a 1/2-20 rearward outlet, and the reservoir is included. No sensor and no mounting hardware are supplied — consult the vehicle service information for the correct fasteners and whether they may be reused. Country of origin: Taiwan.
Interchange: 83-34078 · 8334078 · M900030 · M900042 · 100-2149 · 1002149 · M-81078 · M81078 · 13-57583 · 1357583 · 10-23222 · 1023222 · 10-57583 · 1057583 · 130.61078 · 3200299 · MC500770 · 355-54057 · 35554057 · B5A2140A · B5A2140B · B7A2140A · 5461240 · 5461270 · 5463112 · MC18000 · MC23222 · F18000. Manufacturer part number M18000.
Fitment: Fits 54 applications including the 1948-1952 Ford F-1, 1952-1956 Ford Ranch Wagon, 1955-1960 Ford Thunderbird, 1952-1959 Mercury Monterey, 1958 Edsel Corsair, 1953-1957 Checker Taxicab, 1959 AMC Rambler, and 1956-1957 Nash Rambler (engine: All). See the Buyer's Guide tab for the full list.
This part cross-references / interchanges with the following part numbers:
83-34078, M900030, M900042, 100-2149, M-81078, 13-57583, 10-23222, 10-57583, 130.61078, 3200299, MC500770, 355-54057, B5A2140A, B5A2140B, B7A2140A, 5461240, 5461270, 5463112, MC18000, MC23222, F18000
Frequently Asked Questions
What does the M18000 master cylinder do?
It converts the force from your brake pedal into hydraulic pressure, which is sent through the brake system to apply the brakes.
Does it include a reservoir, sensor, or mounting hardware?
The reservoir is included. No fluid-level sensor is included, and mounting hardware is not supplied; consult the vehicle service information for the correct fasteners.
What vehicles does this master cylinder fit?
It fits 54 vintage applications, including 1948-1960 Ford, Mercury, Edsel, Checker, AMC and Nash models such as the Ford Thunderbird and Mercury Monterey. See the Buyer's Guide tab for the full list.
Is this part new or remanufactured?
It's 100% new, built entirely from new materials — not remanufactured — with a cast-iron housing and EPDM rubber components that resist glycol-based brake fluid.
What are signs my master cylinder may need replacing?
A pedal that slowly sinks to the floor, feels spongy, or unexplained brake-fluid loss can be signs the master cylinder may need replacing. Diagnose the cause before replacing.
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Dorman
Dorman - First Stop Brake Master Cylinder P/N:M18000
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