Dorman M39411 Brake Master Cylinder

Reliable Brake Master Cylinder for Mazda 323 and 626

The Dorman M39411 brake master cylinder is engineered to restore proper brake hydraulics for Mazda 323 and 626 models. Designed with precision, this aluminum master cylinder includes a reservoir and sensor to ensure consistent brake performance.

• Master cylinder bore diameter: 0.875 inches
• Constructed from durable aluminum material
• Includes reservoir for fluid storage
• Equipped with sensor for brake system monitoring
• Two outlets with rearward outlet size M10 x 1.0 and thread pitch 1.0
• Secondary outlet thread diameter: 10 mm
• Mounting hardware not included

Product Details and Specifications

The Dorman M39411 brake master cylinder is designed specifically for Mazda 323 and 626 vehicles, providing a precise fit and reliable operation. Its 0.875-inch bore diameter ensures proper hydraulic pressure for effective braking. Made from aluminum, this master cylinder offers corrosion resistance and long service life. The included reservoir allows for brake fluid storage, while the integrated sensor supports brake system diagnostics. Featuring two outlets, including a rearward outlet sized M10 x 1.0 with a 1.0 thread pitch, this part supports proper brake line connections. Note that mounting hardware is not included with this master cylinder.

Common Applications and Problem Resolution

• Restores brake pressure loss due to worn or damaged master cylinder
• Eliminates brake fluid leaks from the master cylinder reservoir
• Resolves brake pedal sinking or sponginess issues
• Supports brake system sensor functionality for warning light accuracy
• Replaces corroded or cracked aluminum master cylinders in Mazda 323 and 626

Installation Notes and Tips

When installing the Dorman M39411 brake master cylinder, ensure the brake system is properly bled to remove air and maintain hydraulic integrity. Verify compatibility with your specific Mazda 323 or 626 model year before installation. Since mounting hardware is not included, retain or source the necessary bolts and fittings. Handle the aluminum master cylinder carefully to avoid damage during installation.

Quality Assurance and Warranty

Dorman manufactures the M39411 brake master cylinder to meet or exceed OEM specifications for Mazda 323 and 626 vehicles. The aluminum construction provides durability and corrosion resistance. This part includes a sensor to maintain brake system monitoring capabilities. While mounting hardware is not included, the product undergoes quality checks to ensure fit and function. Warranty details are available through Dorman and typically cover defects in materials and workmanship.