HomeBrake > Brake HydraulicsDorman M630591 Brake Master Cylinder
Part #: M630591

Dorman M630591 Brake Master Cylinder

⚙️ 6 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Chrysler and Dodge, 300, Challenger, and Charger
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Reliable Brake Master Cylinder for Chrysler and Dodge Vehicles

The Dorman M630591 Brake Master Cylinder is engineered to restore proper brake hydraulics in Chrysler 300, Dodge Challenger, and Dodge Charger models. Designed with precision, this master cylinder ensures consistent brake fluid pressure for safe and effective braking performance.

  • Master cylinder bore diameter: 1 inch for optimal fluid displacement
  • Constructed from durable aluminum material for corrosion resistance
  • Includes reservoir for brake fluid storage
  • Equipped with a sensor to monitor brake system status
  • Two outlets with rearward outlet size M14 x 1.5 and thread pitch 1.5
  • Secondary outlet thread diameter of 14 mm
  • Package contains the master cylinder only; mounting hardware not included

Detailed Product Description

The Dorman M630591 Brake Master Cylinder is crafted from aluminum, providing a lightweight yet robust component that resists corrosion and wear. Its 1-inch bore diameter is designed to deliver precise hydraulic pressure to the brake system, ensuring responsive braking. The included reservoir allows for proper brake fluid containment and circulation, while the integrated sensor helps monitor brake fluid levels or system status, contributing to vehicle safety. Featuring two outlets, including a rearward outlet sized M14 x 1.5 with a 1.5 thread pitch, this master cylinder is compatible with specific brake line fittings found on Chrysler 300, Dodge Challenger, and Dodge Charger models.

Common Applications and Problem Resolution

  • Restores brake pressure in vehicles experiencing soft or spongy brake pedal feel
  • Replaces master cylinders with leaking or damaged reservoirs
  • Addresses brake fluid contamination or sensor failure issues
  • Resolves inconsistent brake pedal travel or pressure loss
  • Suitable for brake system rebuilds on compatible Chrysler and Dodge models

Installation Notes and Tips

Ensure the brake system is properly bled after installation to remove air and maintain hydraulic integrity. Verify compatibility with your specific Chrysler 300, Dodge Challenger, or Dodge Charger model year before installation. Since mounting hardware is not included, retain original hardware or source appropriate fasteners. Handle the sensor connection carefully to avoid damage during installation.

Quality Assurance and Warranty

Dorman manufactures this brake master cylinder to meet or exceed OEM specifications, ensuring reliable performance and durability. The M630591 part number is backed by Dorman's standard warranty coverage, providing confidence in product quality and longevity.

BrandDorman
Part NumberM630591
Mounting Hardware IncludedNo
Master Cylinder Bore Diameter1
Master Cylinder MaterialAluminum
Reservoir IncludedYes
Secondary Outlet Thread Diameter14
Sensor IncludedYes
Number of Outlets2
Package ContentsMaster cylinder
Rearward Outlet SizeM14 x 1.5
Thread Pitch1.5

This part fits 6 vehicles. Search below:

YearMakeModelPositionNotes
2010Chrysler300N/AHeavy Duty 1 In. Bore Brake Master Cylinder.
2010DodgeChallengerN/AExc. Performance Brakes; Bore: 1 In.
2010DodgeChargerN/AHeavy Duty 1 In. Bore Brake Master Cylinder.
2009Chrysler300N/AHeavy Duty 1 In. Bore Brake Master Cylinder.
2009DodgeChallengerN/AExc. Performance Brakes; Bore: 1 In.
2009DodgeChargerN/AHeavy Duty 1 In. Bore Brake Master Cylinder.

* 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:

10-336313-3363130.6307668048548AAF143507MC391127NM4142

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