Dorman M630797 Brake Master Cylinder

Reliable Brake Master Cylinder Replacement for Your Vehicle

The Dorman M630797 brake master cylinder is designed to restore proper brake function in compatible vehicles. Featuring a durable cast iron construction and an integral reservoir, this master cylinder ensures consistent hydraulic pressure for safe braking performance.

• Master cylinder bore diameter: 1.125 inches for precise hydraulic control
• Constructed from cast iron for long-lasting durability
• Includes an integral reservoir for efficient brake fluid management
• Two outlet ports with rearward outlet size of 1/2-20 for standard brake line connections
• Package contains the master cylinder unit; mounting hardware not included

Product Details and Specifications

The Dorman M630797 brake master cylinder is engineered with a 1.125-inch bore diameter to provide accurate hydraulic pressure to the braking system. Its cast iron material offers strength and resistance to wear, making it suitable for vehicles requiring a robust brake hydraulics component. The integral reservoir design simplifies installation and maintenance by housing the brake fluid within the master cylinder assembly. This part features two outlets with a rearward outlet size of 1/2-20, compatible with standard brake line fittings. While the package includes the master cylinder itself, mounting hardware is not provided and should be sourced separately.

Compatible Vehicles and Common Applications

This brake master cylinder is compatible with a range of vehicles that require a 1.125-inch bore diameter and integral reservoir design. It is commonly used in brake system repairs for various makes and models, including popular trucks and SUVs. The Dorman M630797 is suitable for addressing issues such as:

• Spongy or unresponsive brake pedal feel
• Brake fluid leaks from the master cylinder or reservoir
• Reduced braking efficiency due to internal seal failure
• Brake warning light activation related to hydraulic pressure loss
• Contaminated or deteriorated brake fluid affecting system performance

Installation Notes and Tips

When installing the Dorman M630797 brake master cylinder, ensure the brake system is properly bled to remove air and maintain hydraulic integrity. Verify compatibility with your vehicle’s brake line fittings, especially the 1/2-20 rearward outlet size. Since mounting hardware is not included, retain or acquire the necessary bolts and fittings before beginning installation. Follow manufacturer torque specifications and safety procedures to ensure a secure and leak-free installation.

Quality Assurance and Warranty Information

Dorman manufactures the M630797 brake master cylinder to meet or exceed OEM standards for brake hydraulics components. The cast iron construction and integral reservoir design contribute to reliable performance and durability. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in materials and workmanship. Consult product documentation or the supplier for exact warranty terms.