Dorman M39722 Brake Master Cylinder

Brand Dorman M39722
Mounting Hardware Included No
Master Cylinder Bore Diameter 0.813
Master Cylinder Material Aluminum
Reservoir Included Yes
Secondary Outlet Thread Diameter 10
Sensor Included Yes
Number of Outlets 2
Package Contents Master cylinder
Rearward Outlet Size M10 x 1.0
Thread Pitch 1.0
Fits Dodge and Mitsubishi · 17 vehicles

OE-style replacement. Precision-engineered to match original design, function, and performance.

Aluminum construction. Made from new materials for a durable brake master cylinder.

Reservoir included. Comes with a reservoir and sensor for a complete assembly.

Cross-references Cardone New 13-2462, Centric Parts 130.46507 and Raybestos Brakes MC39722 for the same application. See all 13.

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Dorman M39722 Brake Master Cylinder

Dorman M39722 is a brake master cylinder built for specific Dodge Colt and Mitsubishi Mirage applications from 1989-1992. It is precision-engineered to match the original master cylinder’s design, function, and performance, using new high-quality materials for a durable brake hydraulic replacement.

Key Features

  • Direct replacement brake master cylinder for select 1989-1992 Dodge Colt and Mitsubishi Mirage models
  • Aluminum master cylinder construction for a lightweight, corrosion-resistant design
  • 0.813 in. bore diameter for the specified brake system application
  • Reservoir included for a complete master cylinder assembly
  • Sensor included for vehicles equipped with the original sensor setup
  • Two outlets with M10 x 1.0 thread pitch and rearward outlet size

Detailed Description

This Dorman brake master cylinder is engineered for the original hydraulic layout used on select Dodge Colt and Mitsubishi Mirage vehicles. The aluminum body, 0.813-inch bore, dual outlets, and included reservoir support proper brake system operation in applications that require a 13/16-inch bore size. This part number, M39722, is a practical OE-style replacement for drivers servicing brake hydraulics on these compact import vehicles.

This part cross-references Raybestos Brakes MC39722 for the same application.

What It Helps Fix

  • Brake pedal travel caused by a worn or leaking master cylinder
  • Loss of hydraulic pressure in the brake system
  • External fluid seepage around the master cylinder body or outlets
  • Brake warning light concerns related to the master cylinder sensor circuit
  • Poor brake response on vehicles requiring a 13/16-inch bore master cylinder

Installation Notes and Tips

Verify bore diameter, outlet thread size, and reservoir configuration before installation. This master cylinder is listed for 1989-1989 Dodge Colt, 1990-1991 Dodge Colt, 1991-1992 Dodge Colt built in Canada, 1989-1990 Mitsubishi Mirage, and 1992 Mitsubishi Mirage with drum brake wheel cylinders requiring a 13/16-inch bore size. Bench bleeding the master cylinder before installation helps reduce trapped air in the hydraulic system. Transfer and inspect any required brake lines, fittings, and sensor connections during service.

Quality Assurance

Dorman manufactures this replacement master cylinder with new materials and application-specific engineering to match the original part’s function and performance. Part number M39722 is built for direct-fit service on the listed vehicles and brake system configurations.

This part fits 17 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelBody TypeNotes
1992DodgeColtBuilt in Canada; Bore: 13/16 In.
1992EagleSummitBaseSedanBuilt in Canada; Bore: 13/16 In.
1992EagleSummitBaseHatchbackBuilt in Canada; Bore: 13/16 In.
1992MitsubishiMirageHatchbackCompatible with drum brake wheel cylinders with a 13/16 inch bore size.
1992PlymouthColtBuilt in Canada; Bore: 13/16 In.
1991DodgeColtBuilt in Canada; Bore: 13/16 In.
1991EagleSummitDLBuilt in Canada; Bore: 13/16 In.
1991EagleSummitBaseBuilt in Canada; Bore: 13/16 In.
1991MitsubishiMirageHatchback
1991PlymouthColtBuilt in Canada; Bore: 13/16 In.
1990DodgeColtHatchbackCompatible with drum brake wheel cylinders with a 13/16 inch bore size.
1990EagleSummitESCompatible with drum brake wheel cylinders with a 13/16 inch bore size.
1990MitsubishiMirageHatchback
1990PlymouthColtHatchbackCompatible with drum brake wheel cylinders with a 13/16 inch bore size.
1989DodgeColtHatchback
1989MitsubishiMirageHatchbackCompatible with drum brake wheel cylinders with a 13/16 inch bore size.
1989PlymouthColtHatchback
Directly replaces or cross-references 13 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Cardone New — 13-2462Centric Parts — 130.46507Raybestos Brakes — MC3972211-246218M40283-1650712285F117311M-52507M52462M900609MB534019MC252140