Dorman M630915 Brake Master Cylinder

Reliable Brake Master Cylinder for Cadillac and Chevrolet Vehicles

The Dorman M630915 Brake Master Cylinder is engineered to restore proper brake hydraulics in select Cadillac and Chevrolet models. Designed with durable cast iron and equipped with a removable reservoir, this master cylinder ensures consistent brake fluid delivery and reliable stopping power.

• Master cylinder bore diameter: 1 inch for precise hydraulic pressure
• Constructed from cast iron for strength and durability
• Includes a removable reservoir for easy maintenance
• Equipped with a sensor to monitor brake fluid levels
• Two outlets with M12 x 1.0 thread pitch for secure connections
• Compatible with Cadillac Impala and Chevrolet XTS models

Detailed Product Features and Specifications

The Dorman M630915 master cylinder features a 1-inch bore diameter, providing the necessary hydraulic pressure for effective braking performance. Its cast iron construction offers long-lasting durability under demanding conditions. The included removable reservoir simplifies brake fluid inspection and replacement, while the integrated sensor helps monitor fluid levels to maintain safety. This master cylinder has two outlets, both with M12 x 1.0 thread pitch, ensuring compatibility with the brake lines on Cadillac Impala and Chevrolet XTS vehicles. Note that mounting hardware is not included with this part.

Compatible Vehicles and Common Applications

This brake master cylinder is specifically designed for use in Cadillac Impala and Chevrolet XTS models. It is ideal for addressing issues such as:

• Brake pedal sinking or sponginess due to master cylinder wear
• Brake fluid leaks from a damaged or corroded master cylinder
• Inconsistent brake pressure affecting stopping performance
• Warning lights triggered by faulty brake fluid level sensors
• Replacement during brake system overhauls or upgrades

Installation Notes and Tips

When installing the Dorman M630915 master cylinder, ensure the brake system is properly bled to remove air and maintain hydraulic integrity. The removable reservoir allows for easier fluid handling during installation. Verify that the M12 x 1.0 threaded outlets are securely connected to the brake lines to prevent leaks. Since mounting hardware is not included, retain or source compatible fasteners for secure installation. Always follow vehicle-specific service manuals for torque specifications and safety procedures.

Quality Assurance and Warranty Information

Dorman manufactures this brake master cylinder to meet or exceed OEM standards for fit, form, and function. The cast iron construction and integrated sensor contribute to reliable brake system performance. This part is backed by Dorman's limited warranty, providing coverage against defects in materials and workmanship under normal use conditions.