Dorman M39956 Brake Master Cylinder

Reliable Brake Master Cylinder for Ford, Lincoln, and Mercury Vehicles

The Dorman M39956 Brake Master Cylinder is engineered to restore proper brake hydraulics in select Ford, Lincoln, and Mercury models. Designed with precision, this master cylinder ensures consistent brake fluid pressure for safe and responsive braking performance.

Key Features of the Dorman M39956 Brake Master Cylinder

• Aluminum master cylinder material for durability and corrosion resistance
• Includes reservoir for brake fluid storage
• Equipped with a sensor to monitor brake system status
• Master cylinder bore diameter of 1 inch for optimal fluid displacement
• Four outlets with secondary outlet thread diameter of 10 mm
• Rearward outlet sizes: M10 x 1.0 and M16 x 1.5 thread pitch
• Package contains the master cylinder unit only

Detailed Product Description

The Dorman M39956 brake master cylinder is constructed from aluminum, providing a lightweight yet robust component that resists corrosion and wear. It features a 1-inch bore diameter, which is critical for maintaining the correct hydraulic pressure within the brake system. This master cylinder includes a reservoir, allowing for proper brake fluid containment and circulation. Additionally, the integrated sensor helps monitor brake fluid levels or pressure, contributing to vehicle safety systems. The unit has four outlets, including a secondary outlet with a 10 mm thread diameter and rearward outlets sized M10 x 1.0 and M16 x 1.5, ensuring compatibility with the brake lines of specific vehicle models.

Compatible Vehicles and Common Applications

• Ford Crown Victoria brake master cylinder replacement
• Lincoln Town Car brake hydraulic system repair
• Mercury Grand Marquis brake master cylinder upgrade
• Ford Colony Park brake system maintenance
• LTD Crown Victoria brake master cylinder restoration

Installation Notes and Tips

• Ensure brake fluid reservoir is properly filled before installation
• Bleed the brake system thoroughly after installation to remove air
• Verify thread pitch and outlet sizes match vehicle brake lines
• Use appropriate tools to avoid damaging aluminum surfaces
• Check sensor connections for proper operation after installation

Quality Assurance and Warranty Information

Dorman manufactures the M39956 brake master cylinder to meet or exceed OEM specifications for fit, form, and function. The aluminum construction and integrated sensor contribute to reliable brake system performance. While specific warranty details are not provided, Dorman products typically come with a limited warranty covering defects in material and workmanship.