Dorman M390332 Brake Master Cylinder

Reliable Brake Master Cylinder for Mazda Protege

The Dorman M390332 brake master cylinder is engineered to restore proper brake hydraulics for your Mazda Protege. Designed with precision, this aluminum master cylinder includes a reservoir and sensor to ensure consistent brake performance.

• Master cylinder bore diameter: 0.938 inches for accurate hydraulic pressure
• 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 of 10 mm
• Package contains the master cylinder only; mounting hardware not included

Product Details and Specifications

The Dorman M390332 brake master cylinder is specifically designed for the Mazda Protege, ensuring compatibility and reliable fitment. Its 0.938-inch bore diameter provides precise hydraulic pressure control, essential for effective braking. The aluminum construction offers corrosion resistance and durability under demanding conditions. This master cylinder comes with an integrated reservoir to hold brake fluid and a sensor to monitor system status, supporting safe and responsive braking. Featuring two outlets, including a rearward outlet sized M10 x 1.0 with a 1.0 thread pitch, it facilitates proper brake line connections. Note that mounting hardware is not included, so ensure you have the necessary components for installation.

Common Applications and Problem Resolution

• Restores brake pressure loss due to worn or damaged master cylinder
• Replaces leaking or cracked reservoir components
• Resolves brake warning light issues related to sensor failure
• Addresses inconsistent brake pedal feel or sponginess
• Fixes hydraulic fluid leaks affecting brake performance

Installation Notes and Tips

When installing the Dorman M390332 brake master cylinder on your Mazda Protege, ensure the brake system is properly bled to remove air and maintain hydraulic integrity. Verify that the sensor connections are secure to avoid warning signals. Since mounting hardware is not included, prepare the necessary bolts and fittings compatible with the M10 x 1.0 thread size. Follow manufacturer torque specifications to prevent damage and ensure a secure fit.

Quality Assurance and Warranty

Dorman brake master cylinders are manufactured to meet or exceed OEM standards for fit, form, and function. The M390332 part undergoes rigorous quality control to ensure durability and reliable performance. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in material and workmanship. Consult product documentation for exact warranty terms.