HomeDorman M630640 Brake Master Cylinder
Part #: M630640

Dorman M630640 Brake Master Cylinder

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2 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Jeep, Liberty
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Overview of Dorman Brake Master Cylinder for Jeep Liberty

The Dorman M630640 brake master cylinder is designed specifically for Jeep Liberty models, providing reliable brake hydraulics performance. This master cylinder features an aluminum construction and includes a reservoir and sensor to ensure proper brake fluid management and system monitoring.

  • Compatible with Jeep Liberty models
  • Master cylinder bore diameter: 1.063 inches
  • Durable aluminum master cylinder material
  • Includes reservoir and sensor for brake fluid and system monitoring
  • Two outlet ports with rearward outlet size 7/16-24 uns and secondary outlet thread diameter 3/8-24 unf
  • Mounting hardware not included

Detailed Product Description

The Dorman M630640 brake master cylinder is engineered to meet the hydraulic braking needs of Jeep Liberty vehicles. Constructed from aluminum, this master cylinder offers corrosion resistance and strength for long-lasting service. The included reservoir allows for proper brake fluid storage, while the integrated sensor provides feedback to the vehicle’s brake system for enhanced safety. With a bore diameter of 1.063 inches, this master cylinder ensures consistent hydraulic pressure. It features two outlets: a rearward outlet sized 7/16-24 uns and a secondary outlet with a 3/8-24 unf thread diameter, facilitating proper brake line connections. Note that mounting hardware is not included with this part.

Common Applications and Issues Addressed

  • Replacement for worn or leaking brake master cylinders on Jeep Liberty
  • Resolves brake fluid leaks affecting hydraulic pressure
  • Restores proper brake pedal feel and responsiveness
  • Fixes brake warning light issues related to sensor failure
  • Addresses internal seal failures causing brake system malfunction

Installation Notes and Tips

  • Ensure compatibility with your specific Jeep Liberty model year before installation
  • Bleed the brake system thoroughly after installation to remove air
  • Use appropriate brake fluid as specified by the vehicle manufacturer
  • Inspect brake lines and fittings for wear or damage during installation
  • Mounting hardware must be sourced separately as it is not included

Quality Assurance and Warranty

Dorman manufactures the M630640 brake master cylinder to meet or exceed OEM specifications for Jeep Liberty vehicles. The aluminum construction and integrated sensor contribute to reliable brake system performance. While mounting hardware is not included, the part is designed for straightforward installation with proper tools. Warranty coverage details should be confirmed with the point of purchase or manufacturer documentation.

BrandDorman
Part NumberM630640
Master Cylinder Bore Diameter1.063
Master Cylinder MaterialAluminum
Mounting Hardware IncludedNo
Number of Outlets2
Package ContentsMaster Cylinder
Rearward Outlet Size7/16-24 UNS
Reservoir IncludedYes
Secondary Outlet Thread Diameter3/8-24 UNF
Sensor IncludedYes

This part fits 2 vehicles. Search below:

YearMakeModelPositionNotes
2007JeepLibertyN/ABrake Master Cylinder - Right Hand Drive (RHD)
2006JeepLibertyN/ABrake Master Cylinder - Right Hand Drive (RHD)

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

10-32965189226AAMC391111MWMMC900050

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.