Dorman - First Stop Brake Master Cylinder P/N:M631032

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$107.99
MPN: M631032
UPC: 889245139702
Item Package Quantity: 1
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Dorman - First Stop Brake Master Cylinder P/N:M631032
Dorman - First Stop Brake Master Cylinder P/N:M631032
$107.99

Convert brake-pedal force into the hydraulic pressure that operates the braking system with the Dorman - First Stop Brake Master Cylinder M631032. It installs as a direct-fit replacement for the 2015-2020 Ford Edge, 2015-2018 Lincoln MKX, and 2019-2020 Lincoln Nautilus (all engines), and is precision-engineered to match the design, function, and performance of the original master cylinder on those applications.

  • Aluminum construction: the cylinder housing is cast to match the casting material of the original part for similar performance.
  • Durable EPDM 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.
  • SAE standards: made to meet rigorous SAE International standards.

It carries a 1.063 in bore and two outlets, with an M14 x 1.5 thread on the secondary/rearward outlet, plus two mounting holes. Includes the single reservoir, master cylinder cap, and fluid-level sensor. It does not include a push rod, mounting hardware, mounting bracket, bleeder hoses, or brake booster; consult the vehicle service information for the correct fasteners and whether they may be reused. Country of origin: China.

Interchange: 100-4133 · 1004133 · 10-3310 · 103310 · 13-3310 · 133310 · 130.61132 · F2GZ2140A · NM4322
Manufacturer part number M631032

This part cross-references / interchanges with the following part numbers:

100-4133, 10-3310, 13-3310, 130.61132, F2GZ2140A, NM4322

Frequently Asked Questions

What does the M631032 brake master cylinder do?

It converts the force you apply at the brake pedal into the hydraulic pressure that operates the brakes, distributing that pressure through its two outlets to the system.

Which vehicles does this master cylinder fit?

It is a direct-fit replacement for the 2015-2020 Ford Edge, 2015-2018 Lincoln MKX, and 2019-2020 Lincoln Nautilus (all engines). See the Buyer's Guide tab to confirm your vehicle.

Does it come with the reservoir, cap, and sensor?

Yes. It includes the single reservoir, the master cylinder cap, and the fluid-level sensor.

Are a push rod, mounting hardware, or brake booster included?

No. This cylinder does not include a push rod, mounting hardware, mounting bracket, bleeder hoses, or brake booster. Consult the service procedure for the correct fasteners and whether they may be reused.

What are signs this master cylinder may need replacing?

Common signs include a brake pedal that sinks slowly under steady pressure, a soft or spongy pedal, or fluid loss with no external leak. Have the cause diagnosed before replacing, as other components can share these symptoms.