Dorman M39735 Brake Master Cylinder

Reliable Brake Master Cylinder for Ford and Mercury Vehicles

The Dorman M39735 Brake Master Cylinder is engineered to restore proper brake hydraulics in select Ford and Mercury models. Designed with precision, this master cylinder ensures consistent brake fluid pressure for safe and effective braking performance.

• Master cylinder bore diameter: 1 inch for accurate fluid displacement
• Constructed from durable aluminum material for corrosion resistance
• Includes reservoir and sensor for integrated brake system monitoring
• Features three outlets with secondary outlet thread diameter of 10 mm
• Rearward outlet sizes: M10 x 1.0 and M16 x 1.0 with 1.0 thread pitch
• Package contains the master cylinder only; mounting hardware not included

Product Details and Specifications

This Dorman brake master cylinder (part number M39735) is specifically designed for compatibility with Ford Colony Park, Grand Marquis, and LTD Crown Victoria models, as well as Mercury vehicles of similar specifications. The aluminum construction provides a lightweight yet sturdy component that resists corrosion and wear over time. The included reservoir and sensor allow for seamless integration with the vehicle’s brake hydraulics and monitoring systems. With three outlets and precise thread dimensions, this master cylinder supports proper brake fluid distribution to maintain braking efficiency.

Compatible Vehicles and Applications

This brake master cylinder is compatible with the following vehicles:

• Ford Colony Park
• Ford Grand Marquis
• Ford LTD Crown Victoria
• Mercury models matching these specifications

It is designed to replace worn or failing master cylinders that cause issues such as brake pedal sinking, poor brake response, or fluid leaks.

Common Issues Addressed by This Master Cylinder

• Brake pedal feels spongy or sinks to the floor
• Brake fluid leaks from the master cylinder or reservoir
• Inconsistent brake pressure causing uneven braking
• Brake warning light triggered due to sensor faults
• Reduced braking performance in Ford and Mercury full-size sedans

Installation Notes and Tips

Installation of the Dorman M39735 master cylinder requires proper brake system bleeding to remove air and ensure optimal hydraulic pressure. 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 the vehicle’s brake lines. Sensor connections should be carefully reattached to maintain brake system monitoring functions.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM specifications for fit and function. The M39735 brake master cylinder undergoes rigorous quality control to ensure durability and reliable performance. Please refer to Dorman’s warranty policy for specific coverage details.