Dorman - First Stop Brake Master Cylinder P/N:M630943

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$129.99
MPN: M630943
UPC: 885484897892
Item Package Quantity: 1
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Dorman - First Stop Brake Master Cylinder P/N:M630943
Dorman - First Stop Brake Master Cylinder P/N:M630943
$129.99

Convert brake-pedal force into the hydraulic pressure that operates your brakes with the Dorman - First Stop Brake Master Cylinder M630943. It installs as a direct-fit replacement for the 2014-2016 Dodge Dart [All], and its cast iron housing is built to match the casting material of the original for similar performance.

  • Cast iron housing: constructed to match the original part's casting material for comparable performance.
  • Durable EPDM seals: 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.
  • Built to spec: made to meet rigorous SAE International standards.

Key specs: a 0.9375 in bore, two outlets with M10 x 1.0 threads, and a single reservoir included. A sensor is included; mounting hardware is not — consult the vehicle service information for the correct fasteners and whether they may be reused. Country of origin: China. A pedal that slowly sinks under steady pressure, a soft or spongy pedal, or unexplained brake fluid loss can be signs this master cylinder may need replacing; diagnose the cause before replacing.

Interchange: 100-4118 · 1004118 · 130.63079 · 130.63083 · 131 · 68192625AA · 355-40044 · 35540044 · MC391502
Manufacturer part number M630943

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

100-4118, 130.63079, 130.63083, 131, 68192625AA, 355-40044, MC391502

Frequently Asked Questions

What does the M630943 master cylinder do?

It converts force from the brake pedal into hydraulic pressure, pushing brake fluid through its two outlets to operate the vehicle's brakes.

What vehicle does this fit?

It's a direct-fit replacement for the 2014-2016 Dodge Dart [All]. Check the Buyer's Guide tab to confirm the fit for your vehicle.

Does it include a reservoir and sensor?

Yes. This unit includes a single reservoir and a sensor. Mounting hardware is not included.

What is it made of?

The cylinder housing is cast iron, built to match the original's casting material, and all rubber components use a glycol-resistant EPDM compound.

What are signs a master cylinder may need replacing?

A pedal that slowly sinks under steady pressure, a soft or spongy pedal, or unexplained brake fluid loss can be signs; have the cause diagnosed before replacing.