Dorman M630002 Brake Master Cylinder

Reliable Brake Master Cylinder for Hummer H2

The Dorman M630002 brake master cylinder is engineered specifically for the Hummer H2, providing precise hydraulic control for your vehicle's braking system. Designed with durable aluminum construction and integrated sensor technology, this master cylinder ensures consistent performance and safety.

• Compatible with Hummer H2 models
• Master cylinder bore diameter: 37 mm
• Constructed from lightweight aluminum material
• Includes reservoir and sensor for accurate fluid monitoring
• Two outlet ports with secondary outlet thread diameter of 0.5 inches
• Rearward outlet size: 1/2-20 thread
• Mounting hardware not included

Product Details and Specifications

The Dorman M630002 brake master cylinder features a 37 mm bore diameter, optimized for the hydraulic requirements of the Hummer H2. Its aluminum construction offers corrosion resistance and durability under demanding conditions. This unit comes complete with a reservoir and an integrated sensor, allowing for real-time brake fluid level monitoring. The master cylinder has two outlets, including a secondary outlet with a 0.5-inch thread diameter and a rearward outlet sized at 1/2-20, facilitating proper brake line connections. Note that mounting hardware is not included with this part.

Applications and Problem Resolution

This brake master cylinder is designed to address common braking system issues in the Hummer H2, such as:

• Brake pedal sinking or sponginess due to internal leaks
• Brake fluid leaks from a worn or damaged master cylinder
• Inconsistent brake pressure affecting stopping performance
• Faulty brake fluid level sensor triggering warning lights
• Corrosion or wear compromising hydraulic integrity

Installation Notes and Tips

When installing the Dorman M630002 master cylinder on a Hummer H2, ensure the brake system is properly bled to remove air and maintain hydraulic pressure. Use compatible brake fluid as specified by the vehicle manufacturer. Since mounting hardware is not included, retain or source the correct fasteners for secure installation. Verify sensor connections to maintain accurate brake fluid level monitoring.

Quality Assurance and Warranty

Dorman manufactures this brake master cylinder to meet or exceed OEM standards for fit, form, and function. The aluminum construction and integrated sensor contribute to reliable operation over time. While specific warranty details should be confirmed at the point of purchase, Dorman typically offers limited warranties covering defects in materials and workmanship.