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Dorman - First Stop Brake Master Cylinder P/N:M39568
$153.99
Convert brake-pedal force into the hydraulic pressure that actuates the braking system with the Dorman - First Stop Brake Master Cylinder (M39568). It installs as a direct-fit replacement for the 1986-1990 Ford Bronco II, 1986-1988 Ford Ranger, and 1991-1994 Ford Explorer (all engines), and is precision-engineered to match the design, function, and performance of the original master cylinder.
- Aluminum housing: the cylinder housing is constructed to match the casting material of the original part for similar performance.
- Glycol-resistant seals: all rubber components use a high-quality EPDM compound for resistance to glycol-based brake fluid.
- 100% new: built entirely from new materials, not remanufactured, and made to meet rigorous SAE International standards.
- Ready to install: includes the fluid reservoir and level sensor, with two outlets and a 0.938 in bore diameter (rearward outlet 3/8-24 in, secondary outlet thread 1/2-20 in). Mounting hardware is not included — consult the vehicle service information for the correct fasteners and whether they may be reused.
Signs the original master cylinder may need replacing include a brake pedal that slowly sinks to the floor, a spongy pedal, or brake-fluid loss with no external leak. If a failed master cylinder is the cause, this unit replaces it. Country of origin: Taiwan.
Interchange: 18M308 · 83-42032 · 8342032 · M900514 · 100-2474 · 1002474 · M-85032 · M85032 · 12202 · 13-2375 · 132375 · 10-2375 · 102375 · 130.65032 · MC113426 · 355-54152 · 35554152 · E6TZ2140B · M2375 · NM2375 · MC39568 · F113426. Manufacturer part number M39568.
This part cross-references / interchanges with the following part numbers:
18M308, 83-42032, M900514, 100-2474, M-85032, 12202, 13-2375, 10-2375, 130.65032, MC113426, 355-54152, E6TZ2140B, M2375, NM2375, MC39568, F113426
Frequently Asked Questions
Does this master cylinder fit my vehicle?
It's a direct-fit replacement for the 1986-1990 Ford Bronco II, 1986-1988 Ford Ranger, and 1991-1994 Ford Explorer (all engines). Check the Buyer's Guide tab to confirm your vehicle.
Does it include a reservoir and sensor?
Yes. The fluid reservoir and level sensor are both included. Mounting hardware is not included.
What is the bore diameter and outlet sizing?
The bore diameter is 0.938 in. It has two outlets: a rearward outlet of 3/8-24 in and a secondary outlet thread of 1/2-20 in.
Is this new or remanufactured?
It is 100% new, made entirely from new materials, not remanufactured, and built to meet rigorous SAE International standards.
What are signs my master cylinder may be failing?
A pedal that slowly sinks, feels spongy, or brake-fluid loss with no visible leak can be signs. Diagnose the cause first, since other brake components can produce these symptoms.
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Dorman
Dorman - First Stop Brake Master Cylinder P/N:M39568
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