Help maintain firm, predictable braking with this Dorman brake master cylinder, part number M4572 from the Dorman - First Stop line. It turns force at the brake pedal into the hydraulic pressure that applies the brakes. It fits many vehicles, among them the 1953-1966 Ford P-350, the 1948-1952 Ford F-2 and the 1948-1952 Ford F-3. It is a direct-fit replacement for the listed applications; see the "Vehicles it fits" section for the full list.
M4572 is precision-engineered to match the original master cylinder's design, function and performance. It is built from new, high-quality materials for a safe, durable replacement.
- Precise replacement: the cylinder housing is constructed to match the casting material of the original part, for similar performance.
- Durable design: every rubber component is made of a high-quality EPDM compound that resists glycol-based brake fluid.
- 100% new: made entirely from new materials for quality and safety.
- Strict specifications: made to meet rigorous SAE International standards.
If a leaking or worn master cylinder is behind a soft or sinking pedal, this unit replaces it. Inspect the rest of the hydraulic system as well, because those symptoms can have other causes.
Interchange: 100-2731 · M-89001 · 13-34572 · 10-34572 · 130.79001 · 355-54270
1002731 · M89001 · 1334572 · 1034572 · 13079001 · 35554270 · 18M5 · M900018 · 11046 · MC250510 · B9J2140A · 2622861 · 5461370 · MC4572 · F1310 · F133444 · F4572 · MC1310 · MC133444
This part cross-references / interchanges with the following part numbers:
18M5, M900018, 100-2731, M-89001, 11046, 13-34572, 10-34572, 130.79001, MC250510, 355-54270, B9J2140A, 2622861, 5461370, MC4572, F1310, F133444, F4572, MC1310, MC133444
Frequently Asked Questions
What does the Dorman master cylinder M4572 do?
It converts force from the brake pedal into hydraulic pressure and sends brake fluid through the lines to apply the brakes at each wheel.
Which vehicles does M4572 fit?
It fits many vehicles, including the 1953-1966 Ford P-350, the 1948-1952 Ford F-2 and the 1948-1952 Ford F-3. Check the "Vehicles it fits" section to confirm your vehicle.
What are the rubber components made of?
All rubber components use a high-quality EPDM compound, which resists glycol-based brake fluid.
What are signs a brake master cylinder may need replacing?
A soft or sinking pedal, fluid leaking at the cylinder, or a steadily dropping fluid level can be signs of a failing master cylinder. Diagnose the brake system to confirm the cause before replacing it.
Is there anything to know before installing it?
Follow the vehicle's service procedure. For a master cylinder it commonly calls for bench bleeding before installation and bleeding the brake system afterward, using the brake fluid specified for your vehicle.
