Dorman M390384 Brake Master Cylinder

Overview of Dorman Brake Master Cylinder for Mazda Protege

The Dorman M390384 brake master cylinder is designed specifically for Mazda Protege models, providing reliable brake hydraulics performance. This master cylinder features an aluminum construction and includes a reservoir and sensor to ensure proper brake system function.

• Compatible with Mazda Protege vehicles
• Master cylinder bore diameter: 0.875 inches
• Constructed from durable aluminum material
• Includes reservoir and sensor for accurate brake fluid management
• 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

Detailed Product Description

The Dorman M390384 brake master cylinder is engineered to meet the specific hydraulic requirements of the Mazda Protege brake system. Its 0.875-inch bore diameter ensures proper fluid displacement for consistent brake pressure. Made from aluminum, this master cylinder offers corrosion resistance and durability under typical operating conditions. The included reservoir allows for efficient brake fluid storage, while the integrated sensor monitors fluid levels to alert drivers of potential issues. Featuring two outlets, including a rearward outlet sized M10 x 1.0 with a 1.0 thread pitch, this part supports the brake lines' connection and fluid distribution. Note that mounting hardware is not included, so ensure compatibility with existing components during installation.

Common Applications and Issues Addressed

• Replacement for worn or leaking brake master cylinders on Mazda Protege
• Resolves brake fluid leaks affecting hydraulic pressure
• Addresses brake pedal sponginess caused by master cylinder failure
• Restores proper brake fluid level monitoring with included sensor
• Improves overall brake system responsiveness and safety

Installation Notes and Tips

• Verify compatibility with your Mazda Protege model year before installation
• Bleed the brake system thoroughly after installation to remove air
• Use appropriate brake fluid as specified by the vehicle manufacturer
• Check all connections for leaks after installation
• Mounting hardware must be sourced separately as it is not included

Quality Assurance and Warranty

Dorman manufactures the M390384 brake master cylinder to meet or exceed OEM specifications for fit and function. The aluminum construction provides corrosion resistance and long service life. This part includes a sensor and reservoir to maintain system integrity. While mounting hardware is not included, the product undergoes quality checks to ensure reliable performance. Warranty coverage details should be confirmed with the distributor or manufacturer.