Dorman - First Stop Brake Master Cylinder M630944
Dorman - First Stop Brake Master Cylinder M630944 - view 2
Dorman - First Stop Brake Master Cylinder M630944 - view 3
Dorman - First Stop Brake Master Cylinder M630944 - view 4
Dorman - First Stop Brake Master Cylinder M630944
Dorman - First Stop Brake Master Cylinder M630944 - view 2
Dorman - First Stop Brake Master Cylinder M630944 - view 3
Dorman - First Stop Brake Master Cylinder M630944 - view 4

Brake Master Cylinder for 2014-2024 Ram ProMaster 1500 & More - Dorman M630944

Be the first to review this product
$191.99
MPN: M630944
UPC: 885484897915
Item Package Quantity: 1
Adding to cart… The item has been added

Have questions?

Ask an Expert
Dorman - First Stop Brake Master Cylinder P/N:M630944
Dorman - First Stop Brake Master Cylinder P/N:M630944
$191.99

Dorman M630944 brake master cylinder for the 2014-2024 Ram ProMaster 1500 and other vehicles turns pedal force into hydraulic pressure for the brakes.

  • Part of the Dorman First Stop line
  • Cast iron cylinder housing
  • Rubber components made of EPDM compound for resistance to glycol-based brake fluid
  • Made entirely of new materials
  • Made to meet rigorous SAE International standards
  • Reservoir and sensor included

Quick facts

  • Part: Dorman M630944 brake master cylinder
  • Fits: 2014-2024 Ram ProMaster 1500 and other vehicles
  • Material: Cast iron
  • Condition: New

A soft or sinking brake pedal, fluid around the cylinder or a brake warning light can mean a master cylinder is wearing out. A soft pedal on its own does not prove the master cylinder is the problem; a leaking brake line is another common source.

Fits

The 2014-2024 Ram ProMaster 1500, the 2014-2024 Ram ProMaster 2500, the 2014-2024 Ram ProMaster 3500 and many other vehicles take this master cylinder, one per vehicle. Open the Buyer's Guide tab to check your exact model and engine.

Specifications

Fit and size

  • Quantity per vehicle: 1
  • Bore diameter: 1.0625 in
  • Number of outlets: 2
  • Rearward outlet size: M12 X 1.0
  • Secondary outlet thread diameter: M12 X 1.0
  • Primary outlet thread pitch: 1 mm

Build and materials

  • Material: Cast iron
  • Rubber components: EPDM compound
  • Reservoir type: Single, included
  • Sensor: Included
  • Condition: New
  • Country of origin: China

In the box

One brake master cylinder. Mounting hardware is not included, so plan on new fasteners rather than reusing old ones.

Interchange: 100-4316 · 130.67055 · 355-39030
68211341AA · NM4321 · MC391521

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

100-4316, 130.67055, 68211341AA, 355-39030, NM4321, MC391521

Frequently Asked Questions

Does the Dorman M630944 master cylinder fit the 2014-2024 Ram ProMaster 2500?

Yes, Dorman M630944 fits the 2014-2024 Ram ProMaster 2500, one master cylinder per vehicle. For another model or engine, open the Buyer's Guide tab.

What are the rubber parts in this brake master cylinder made of?

All rubber components are made of EPDM compound, which resists glycol-based brake fluid. The cylinder housing itself is cast iron.

Does the Dorman M630944 come with a reservoir and sensor?

Yes, Dorman M630944 includes the reservoir and the sensor. Mounting hardware is not included.

What bore size and outlet threads does this master cylinder have?

The bore diameter is 1.0625 inch. The rearward and secondary outlets are M12 X 1.0, and the primary outlet thread pitch is 1 mm.

Is 68211341AA an interchange number for this master cylinder?

Yes, 68211341AA is listed as an interchange number for this master cylinder.

Related Products

!