Dorman M390091 Brake Master Cylinder

Reliable Brake Master Cylinder for Ford Escort and Mercury Tracer

The Dorman M390091 Brake Master Cylinder is engineered to restore proper brake hydraulics for Ford Escort and Mercury Tracer models. Designed with precision, this master cylinder includes a reservoir and sensor to ensure consistent brake performance.

• Master cylinder bore diameter: 0.875 inches for accurate hydraulic pressure
• Constructed from durable aluminum material for corrosion resistance
• Includes reservoir and sensor for integrated brake system monitoring
• Four outlets with rearward outlet sizes M10 x 1.0 and M16 x 1.5
• Compatible with Ford Escort and Mercury Tracer vehicles
• Mounting hardware not included

Product Details and Specifications

The Dorman M390091 brake master cylinder is crafted from aluminum, providing a lightweight yet robust component that resists corrosion and wear. Its 0.875-inch bore diameter is designed to deliver precise hydraulic pressure to the brake system. This master cylinder comes complete with an integrated reservoir and sensor, allowing for seamless fluid management and brake system monitoring. Featuring four outlets, including rearward outlet sizes of M10 x 1.0 and M16 x 1.5, it supports proper brake line connections for the Ford Escort and Mercury Tracer models. Note that mounting hardware is not included, so ensure compatibility with your vehicle's existing setup.

Common Applications and Problem Resolution

• Restores brake hydraulic pressure in Ford Escort and Mercury Tracer vehicles
• Replaces worn or leaking master cylinders causing brake fluid loss
• Addresses brake pedal sponginess or failure due to master cylinder issues
• Resolves sensor-related brake warning light activation
• Improves brake system reliability and safety

Installation Notes and Tips

Installation of the Dorman M390091 master cylinder requires proper brake system bleeding to remove air and ensure optimal performance. Since mounting hardware is not included, verify that existing bolts and fittings are compatible. It is recommended to inspect brake lines and related components during installation to prevent future issues. Use appropriate tools and follow vehicle-specific service manuals for safe and accurate installation.

Quality Assurance and Warranty Information

Dorman manufactures the M390091 brake master cylinder to meet or exceed OEM standards for fit, form, and function. The aluminum construction and integrated sensor contribute to long-term durability. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in materials and workmanship. Consult product documentation or contact the manufacturer for exact warranty terms.