Dorman M390383 Brake Master Cylinder

Reliable Brake Master Cylinder for Mazda Protege

The Dorman M390383 brake master cylinder is engineered to provide consistent hydraulic pressure for your Mazda Protege's braking system. Designed with precision, this aluminum master cylinder includes a reservoir and sensor to ensure optimal brake performance and safety.

• Master cylinder bore diameter: 0.875 inches for precise hydraulic control
• Constructed from durable aluminum material for corrosion resistance
• Includes reservoir for brake fluid storage
• Equipped with a sensor to monitor brake system status
• Three outlets with a secondary outlet thread diameter of 10 mm
• Rearward outlet size: M10 x 1.0 with a thread pitch of 1.0
• Package contains the master cylinder only; mounting hardware not included

Product Details and Specifications

The Dorman M390383 brake master cylinder is specifically designed for the Mazda Protege, ensuring compatibility and reliable fitment. Its 0.875-inch bore diameter allows for accurate hydraulic pressure delivery, essential for effective braking. The aluminum construction offers durability and resistance to corrosion, extending the service life of the component. This master cylinder comes with an integrated reservoir to hold brake fluid and a sensor that provides feedback to the vehicle’s brake system, enhancing safety and performance. Featuring three outlets, including a secondary outlet with a 10 mm thread diameter and a rearward outlet sized M10 x 1.0, this part meets the precise specifications required for the Mazda Protege’s brake hydraulics system.

Common Applications and Problem Resolution

• Restores proper hydraulic pressure in the brake system
• Replaces leaking or damaged master cylinders causing brake fluid loss
• Addresses brake pedal issues such as sponginess or sinking
• Resolves sensor-related brake warning light activations
• Improves overall brake responsiveness and safety

Installation Notes and Tips

Installation of the Dorman M390383 brake master cylinder requires careful attention to brake system bleeding procedures to remove air and ensure proper hydraulic function. Note that mounting hardware is not included, so existing hardware should be inspected and replaced if necessary. Verify thread sizes and outlet connections to ensure compatibility with your Mazda Protege’s brake lines. It is recommended to consult the vehicle’s service manual for torque specifications and installation guidelines.

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 performance under normal operating conditions. While specific warranty details are not provided here, Dorman typically offers limited warranties on their brake hydraulic components. Refer to the product packaging or Dorman’s official documentation for exact warranty terms.