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Dorman - First Stop Brake Master Cylinder P/N:M36121
$153.99
Convert brake-pedal force into the hydraulic pressure that applies the brakes with the Dorman - First Stop Brake Master Cylinder M36121. It drops in as a direct-fit replacement engineered to match the design, function, and performance of the original unit on the listed applications: the 1961-1965 International Scout 80 [All], the 1966 International Scout 800 [All], and the 1961-1964 Lincoln Continental [All].
- Cast-iron housing: the cylinder housing is constructed to match the casting material of the original part for similar performance.
- EPDM rubber components: all 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.
- Two outlets: features a 0.875 in bore, a 3/8-24 in rearward outlet, and a 1/8-27 NPT secondary outlet thread.
An integrated reservoir is included; a fluid-level sensor and mounting hardware are not included — consult the vehicle service information for the correct fasteners and whether they may be reused. Country of origin: Taiwan. Signs the original may need replacing include a pedal that slowly sinks to the floor, a spongy feel, or unexplained fluid loss; if a failed master cylinder is the cause, this replaces it.
Interchange: 83-46003 · 8346003 · M900068 · 100-2705 · 1002705 · M-88003 · M88003 · 13-36121 · 1336121 · 10-36121 · 1036121 · 130.68003 · MC509530 · 355-55011 · 35555011 · C1VY2140B · 5472927 · 5472931 · 871322R91 · MC36121 · F36852 · MC36852. Manufacturer part number M36121.
This part cross-references / interchanges with the following part numbers:
83-46003, M900068, 100-2705, M-88003, 13-36121, 10-36121, 130.68003, MC509530, 355-55011, C1VY2140B, 5472927, 5472931, 871322R91, MC36121, F36852, MC36852
Frequently Asked Questions
What does this brake master cylinder do?
It converts the force from your brake pedal into hydraulic pressure that operates the brake system. If a failed master cylinder is the cause of your braking issue, this unit replaces it.
Which vehicles does the M36121 fit?
It's a direct-fit replacement for the 1961-1965 International Scout 80, the 1966 International Scout 800, and the 1961-1964 Lincoln Continental. See the Buyer's Guide tab to confirm your vehicle.
Does it include a reservoir and a fluid-level sensor?
An integrated reservoir is included. A fluid-level sensor is not included with this master cylinder.
Is mounting hardware included?
No, mounting hardware is not included. Consult the vehicle service information for the correct fasteners and whether they may be reused.
What are signs my master cylinder may need replacing?
Common signs include a brake pedal that slowly sinks toward the floor, a spongy pedal feel, or unexplained brake-fluid loss. Diagnose the cause before replacing, as other parts can produce these symptoms.
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Dorman
Dorman - First Stop Brake Master Cylinder P/N:M36121
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