Dorman M39634 Brake Master Cylinder

Reliable Brake Master Cylinder for Ford Bronco and Econoline Models

The Dorman M39634 Brake Master Cylinder is engineered to restore proper brake hydraulics in select Ford vehicles. Designed specifically for models like the Ford Bronco, F-150, and E-150 Econoline, this master cylinder ensures consistent brake fluid pressure and reliable stopping power.

Key Features of the Dorman M39634 Brake Master Cylinder

• Master cylinder bore diameter of 1.063 inches for precise hydraulic control
• Durable aluminum construction for corrosion resistance and longevity
• Includes reservoir and sensor for integrated brake fluid monitoring
• Two outlet ports with rearward outlet size M18 x 1.5 and secondary outlet thread diameter 9/16-18
• Compatible with Ford Bronco, E-150 Econoline, E-250 Econoline, F-150, F-150 Heritage, and F-250 models
• Mounting hardware not included, allowing for flexible installation options

Detailed Product Description

The Dorman M39634 Brake Master Cylinder is a critical component in the brake hydraulics system, responsible for converting pedal force into hydraulic pressure. Constructed from aluminum, this master cylinder offers enhanced durability and resistance to corrosion, which is essential for maintaining brake system integrity over time. The included reservoir and sensor provide a complete solution for fluid storage and brake fluid level monitoring, ensuring safe operation. With two outlets designed to fit specific thread sizes, this master cylinder is tailored for direct compatibility with various Ford trucks and vans, including the Bronco and Econoline series.

Common Applications and Problem Resolution

• Restores brake fluid pressure in Ford Bronco and Econoline brake systems
• Replaces worn or leaking master cylinders causing brake pedal sponginess
• Addresses brake fluid leaks due to damaged or corroded master cylinder bodies
• Resolves brake warning light activation related to sensor or fluid level issues
• Improves overall brake system responsiveness and safety

Installation Notes and Tips

• Ensure compatibility with your specific Ford model and year before installation
• Bleed the brake system thoroughly after installation to remove air pockets
• Mounting hardware is not included; verify existing hardware condition or acquire appropriate fasteners
• Handle the sensor connection carefully to maintain proper brake fluid level monitoring
• Consult vehicle service manual for torque specifications and installation procedures

Quality Assurance and Warranty Information

Dorman manufactures the M39634 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 may vary, Dorman typically offers a limited warranty covering defects in materials and workmanship. Refer to Dorman’s official warranty policy for complete terms.