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Dorman - First Stop Brake Master Cylinder P/N:M39445
$59.99
Turn brake-pedal pressure into the hydraulic force that works the brakes at all four corners with the Dorman - First Stop Brake Master Cylinder M39445. It drops in as a direct-fit replacement for the 1984-1986 Ford E-250 Econoline, E-250 Econoline Club Wagon, E-350 Econoline, E-350 Econoline Club Wagon, F-250 and F-350 (all engines), precision-engineered to match the original master cylinder's design, function, and performance on those applications.
- Cast-iron housing: the cylinder housing is built to match the casting material of the original part for similar performance.
- Durable design: 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.
- Strict specifications: made to meet rigorous SAE International standards.
It has a 1.125 in bore and two outlets — a rearward outlet sized 3/8-24 in and a secondary outlet with a 7/16-24 thread — and the reservoir is included. No brake-fluid level sensor is included. Mounting hardware is not included; consult the vehicle service information for the correct fasteners and whether they may be reused. Country of origin: China.
Interchange: 18M236 · 783-42031 · 78342031 · 83-42031 · 8342031 · M900436 · 100-2472 · 1002472 · M-85031 · M85031 · 12008 · 13-2008 · 132008 · 10-2008 · 102008 · 130.65031 · 131.65031 · MC110919 · 355-54151 · 35554151 · E4TZ2140B · 110919 · M2008 · NM2008 · 2539445 · MC39445 · F110919. Manufacturer part number M39445.
This part cross-references / interchanges with the following part numbers:
18M236, 783-42031, 83-42031, M900436, 100-2472, M-85031, 12008, 13-2008, 10-2008, 130.65031, 131.65031, MC110919, 355-54151, E4TZ2140B, 110919, M2008, NM2008, 2539445, MC39445, F110919
Frequently Asked Questions
What does a brake master cylinder do?
It converts the force you apply at the brake pedal into hydraulic pressure that is sent through the brake lines to actuate the brakes at the wheels.
Does this master cylinder come with a reservoir and a fluid-level sensor?
The reservoir is included. A brake-fluid level sensor is not included, per the part's specifications.
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.
Which vehicles does M39445 fit?
It is a direct-fit replacement for the 1984-1986 Ford E-250 Econoline, E-250 Econoline Club Wagon, E-350 Econoline, E-350 Econoline Club Wagon, F-250 and F-350. See the Buyer's Guide tab to confirm your vehicle.
What are the bore and outlet sizes?
It has a 1.125 in bore and two outlets: a rearward outlet sized 3/8-24 in and a secondary outlet with a 7/16-24 thread. If a failing master cylinder is the cause of a sinking or spongy pedal, this replaces it.
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Dorman
Dorman - First Stop Brake Master Cylinder P/N:M39445
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