Dorman M630515 Brake Master Cylinder

Reliable Brake Master Cylinder for Dodge and Jeep Vehicles

The Dorman M630515 brake master cylinder is engineered to provide consistent hydraulic pressure for your vehicle's braking system. Designed specifically for Dodge Caliber, Jeep Compass, and Jeep Patriot models, this aluminum master cylinder ensures precise brake control and durability.

• Master cylinder bore diameter: 0.813 inches for optimal hydraulic performance
• Constructed from durable aluminum material for corrosion resistance
• Includes two outlets with M12 x 1.0 thread size for secure brake line connections
• Does not include reservoir or sensor, allowing compatibility with existing components
• Package contains the master cylinder only, no mounting hardware included

Product Details and Specifications

The Dorman M630515 brake master cylinder features a 0.813-inch bore diameter, which is critical for maintaining proper brake fluid pressure and pedal feel. Its aluminum construction offers a balance of strength and corrosion resistance, extending the service life of the component. The unit includes two outlets, both with M12 x 1.0 thread pitch, designed to connect seamlessly with the brake lines on compatible Dodge and Jeep models. This master cylinder does not come with a reservoir or sensor, making it suitable for vehicles that retain their original reservoir and sensor assemblies.

Compatible Vehicles and Applications

This brake master cylinder is compatible with the following vehicles:

• Dodge Caliber
• Jeep Compass
• Jeep Patriot

It is designed to replace the original master cylinder in these models, restoring proper brake hydraulics and pedal response.

Common Issues Addressed by This Master Cylinder

• Brake pedal sinking or sponginess due to internal leaks
• Loss of hydraulic pressure affecting braking performance
• Brake fluid contamination or cylinder bore wear
• Inconsistent brake pedal feel or delayed brake response
• Replacement of a damaged or worn master cylinder in Dodge Caliber, Jeep Compass, or Jeep Patriot

Installation Notes and Tips

When installing the Dorman M630515 master cylinder, ensure the brake system is properly bled to remove air and restore hydraulic pressure. Since mounting hardware is not included, retain or source the original fasteners. Verify compatibility with your vehicle’s existing reservoir and sensor components before installation. Proper torque specifications should be followed to avoid leaks or damage to the threaded outlets.

Quality Assurance and Warranty

Dorman manufactures this brake master cylinder to meet or exceed OEM standards for fit, form, and function. The aluminum construction provides durability and resistance to corrosion. While specific warranty details are not provided, Dorman products typically come with a limited warranty covering defects in material and workmanship.