Dorman M631033 Brake Master Cylinder

Reliable Brake Master Cylinder for Mazda CX-5

The Dorman M631033 brake master cylinder is designed specifically for Mazda CX-5 models, providing precise hydraulic control for your vehicle's braking system. Engineered with durable aluminum construction, this master cylinder ensures consistent performance and longevity.

• Compatible with Mazda CX-5 brake hydraulics system
• Aluminum master cylinder material for durability
• 0.813 inch bore diameter for accurate hydraulic pressure
• Two mounting holes for secure installation
• Includes one master cylinder unit (mounting hardware not included)
• Two outlets with rearward outlet size M12 x 1.0 thread diameter

Product Details and Specifications

The Dorman M631033 brake master cylinder features a 0.813 inch bore diameter, which is critical for maintaining proper brake fluid pressure and pedal feel. Constructed from aluminum, this part offers resistance to corrosion and wear, contributing to a longer service life. It includes two mounting holes to ensure a stable fit within the brake system assembly. This master cylinder has two outlets, with the secondary outlet thread diameter measuring 12 mm and a rearward outlet size of M12 x 1.0, matching the original equipment specifications for the Mazda CX-5. Note that this product does not include mounting hardware, brake booster, reservoir, push rod, bleeder hoses, sensor, or mounting bracket, so these components must be sourced separately if needed.

Common Applications and Problem Resolution

• Restores proper brake fluid pressure in Mazda CX-5 brake systems
• Replaces worn or leaking master cylinders causing brake pedal issues
• Addresses brake fluid leaks from the master cylinder body or seals
• Improves brake pedal responsiveness and safety
• Solves issues related to inconsistent brake pressure or spongy pedal feel

Installation Notes and Tips

When installing the Dorman M631033 brake master cylinder on your Mazda CX-5, ensure the brake system is properly bled to remove any air pockets. Since mounting hardware is not included, retain or acquire the correct bolts and fittings for secure attachment. Verify that the outlet thread sizes match your brake lines to avoid leaks. It is recommended to inspect related components such as the brake booster and reservoir during installation to ensure overall system integrity.

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 corrosion resistance and durability under normal operating conditions. While specific warranty details are not provided here, Dorman typically offers limited warranties on their brake hydraulic components. Consult product documentation or the supplier for exact warranty terms.