Dorman M390449 Brake Master Cylinder

Overview of Dorman Brake Master Cylinder M390449

The Dorman Brake Master Cylinder M390449 is designed specifically for Ford Escort and Mercury Tracer models, providing reliable brake hydraulics performance. This master cylinder features an aluminum construction and includes a reservoir and sensor for efficient brake system operation.

• Compatible with Ford Escort and Mercury Tracer vehicles
• Master cylinder bore diameter of 0.938 inches
• Durable aluminum master cylinder material
• Includes reservoir and sensor for complete functionality
• Four outlets with rearward outlet sizes M10 x 1.0 and M16 x 1.5
• Secondary outlet thread diameter M10 x 1.0 and M16 x 1.5
• Mounting hardware not included

Detailed Product Description

The Dorman M390449 brake master cylinder is engineered to meet the specific hydraulic requirements of Ford Escort and Mercury Tracer models. Constructed from aluminum, this master cylinder offers corrosion resistance and durability under demanding brake system conditions. The 0.938-inch bore diameter ensures proper hydraulic pressure for effective braking. This unit comes complete with a reservoir and sensor, allowing for seamless integration with the vehicle’s brake fluid monitoring system. Featuring four outlets, including rearward outlet sizes of M10 x 1.0 and M16 x 1.5, it supports multiple brake line connections necessary for these vehicle models. Note that mounting hardware is not included, so existing hardware or separate purchase may be required.

Common Applications and Problem Resolution

• Restores proper brake fluid pressure in Ford Escort and Mercury Tracer brake systems
• Replaces worn or leaking master cylinders causing brake pedal sponginess
• Addresses brake fluid leaks from damaged or corroded master cylinders
• Resolves brake warning light issues related to faulty sensors
• Improves overall brake system responsiveness and safety

Installation Notes and Tips

Installation of the Dorman M390449 brake master cylinder requires careful attention to brake line connections and sensor wiring. Ensure the brake fluid reservoir is properly seated and sealed to prevent leaks. Bleed the brake system thoroughly after installation to remove air and restore optimal hydraulic pressure. Since mounting hardware is not included, verify compatibility with existing components or acquire necessary hardware before installation. Professional installation is recommended for accurate fitment and brake system safety.

Quality Assurance and Warranty

Dorman manufactures the M390449 brake master cylinder to meet or exceed OEM specifications for Ford Escort and Mercury Tracer vehicles. The aluminum construction and integrated sensor contribute to long-term reliability. While specific warranty details are not provided here, Dorman typically offers limited warranties on their brake hydraulics components. Consult product documentation or the manufacturer for exact warranty terms.