Dorman M630793 Brake Master Cylinder

Reliable Brake Master Cylinder for Precise Hydraulic Control

The Dorman M630793 brake master cylinder is engineered to deliver consistent hydraulic pressure for your vehicle's braking system. Designed with a cast iron body and a 1.25-inch bore diameter, this master cylinder ensures durability and reliable performance for compatible makes and models requiring a remote reservoir setup.

• Cast iron master cylinder material for strength and longevity
• Includes brake booster for enhanced braking assistance
• Four mounting holes for secure installation
• Two outlet ports with rearward outlet size M10 x 1.0 and secondary outlet thread diameter 0.5
• Package includes master cylinder and bleeder kit for maintenance
• Compatible with vehicles requiring a remote reservoir type

Technical Details and Specifications

The Dorman M630793 features a 1.25-inch bore diameter master cylinder constructed from cast iron, providing a robust and corrosion-resistant component for brake hydraulics. It includes a brake booster to improve pedal feel and braking efficiency. The unit has four mounting holes to ensure a secure fit and two outlets to connect to the brake lines, with a rearward outlet size of M10 x 1.0 and a secondary outlet thread diameter of 0.5. This master cylinder is designed for use with a remote reservoir, which is not included in the package. The push rod, mounting hardware, master cylinder cap, sensor, and mounting bracket are not included, so verify compatibility with your vehicle's existing components before installation.

Common Applications and Problem Resolution

• Restores proper hydraulic pressure in brake systems with worn or leaking master cylinders
• Addresses spongy or unresponsive brake pedal issues
• Replaces master cylinders with damaged or corroded cast iron bodies
• Compatible with vehicles requiring a brake booster integrated master cylinder
• Suitable for brake systems utilizing remote reservoir configurations

Installation Notes and Tips

Ensure the vehicle is compatible with a 1.25-inch bore diameter master cylinder and remote reservoir setup before installation. Since mounting hardware and push rod are not included, retain or source these components as needed. Bleed the brake system thoroughly using the included bleeder kit to remove air and ensure optimal brake performance. Verify the brake booster compatibility and outlet thread sizes (M10 x 1.0 rearward outlet and 0.5 secondary outlet) to match your vehicle's brake lines.

Quality Assurance and Warranty Information

Dorman manufactures the M630793 brake master cylinder to meet or exceed OEM standards for fit, form, and function. The cast iron construction provides durability under demanding conditions. While specific warranty details are not provided here, Dorman products typically come with a limited warranty covering defects in materials and workmanship. Consult product documentation or Dorman directly for exact warranty terms.