HomeBrake > Brake HydraulicsDorman M630650 Brake Master Cylinder
Part #: M630650

Dorman M630650 Brake Master Cylinder

⚙️ 8 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Chevrolet, Impala and Impala Limited
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Reliable Brake Master Cylinder for Chevrolet Impala Models

The Dorman M630650 Brake Master Cylinder is engineered to restore proper brake hydraulics in Chevrolet Impala and Impala Limited vehicles. Designed with precision, this master cylinder ensures consistent brake fluid pressure for safe and effective braking performance.

  • Master cylinder bore diameter: 1 inch for accurate fluid displacement
  • Constructed from durable aluminum material for corrosion resistance
  • Includes reservoir for brake fluid storage and monitoring
  • Equipped with sensor to support brake system diagnostics
  • Two outlet ports with rearward outlet size M14 x 1.5 and 14mm secondary outlet thread diameter

Product Details and Specifications

The Dorman M630650 brake master cylinder features a 1-inch bore diameter, which is critical for maintaining the correct hydraulic pressure within the brake system of Chevrolet Impala and Impala Limited models. Its aluminum construction offers strength and resistance to corrosion, extending the service life of the component. The included reservoir allows for proper brake fluid containment and monitoring, while the integrated sensor supports vehicle brake system warning functions. This master cylinder has two outlets, including a rearward outlet sized M14 x 1.5 with a thread pitch of 1.5, ensuring compatibility with the vehicle’s brake lines.

Compatible Vehicles and Applications

  • Chevrolet Impala (various model years)
  • Chevrolet Impala Limited

This part is specifically designed for brake hydraulic systems in these Chevrolet models, making it a suitable replacement for worn or damaged master cylinders.

Common Issues Addressed by This Master Cylinder

  • Brake pedal sinking or sponginess due to internal leaks
  • Brake fluid leaks around the master cylinder area
  • Brake warning light activation related to sensor faults
  • Reduced braking efficiency caused by faulty hydraulic pressure
  • Contaminated or damaged reservoir affecting fluid levels

Installation Notes and Tips

When installing the Dorman M630650 master cylinder, ensure the brake system is properly bled to remove air and maintain hydraulic integrity. Verify that the sensor connections are secure to avoid warning light issues. Use compatible brake fluid as specified by the vehicle manufacturer. Note that mounting hardware is not included and should be reused or sourced separately if needed.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit and function. The M630650 brake master cylinder undergoes rigorous quality control to ensure reliability and durability. Please refer to Dorman’s warranty policy for specific coverage details.

BrandDorman
Part NumberM630650
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 8 vehicles. Search below:

YearMakeModelPositionNotes
2016ChevroletImpala LimitedN/A
2015ChevroletImpala LimitedN/ACompatible with 1-inch bore drum brake wheel cylinders.
2014ChevroletImpala LimitedN/ACompatible with 1-inch bore drum brake wheel cylinders.
2013ChevroletImpalaN/ACompatible with 1-inch bore drum brake wheel cylinders.
2012ChevroletImpalaN/ACompatible with 1-inch bore drum brake wheel cylinders.
2011ChevroletImpalaN/ACompatible with 1-inch bore drum brake wheel cylinders.
2010ChevroletImpalaN/ACompatible with 1-inch bore drum brake wheel cylinders.
2009ChevroletImpalaN/ACompatible with 1-inch bore drum brake wheel cylinders.

* 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:

10-399613-3996130.6217320885005F144426MC391174

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