Dorman M39876 Brake Master Cylinder

Reliable Brake Master Cylinder for Ford F-350

The Dorman M39876 brake master cylinder is engineered to restore proper brake hydraulics in your Ford F-350. Designed with precision, this aluminum master cylinder includes a reservoir and sensor to ensure consistent brake performance.

• Master cylinder bore diameter: 1.313 inches
• Constructed from durable aluminum material
• Includes reservoir and sensor for accurate fluid monitoring
• Two outlet ports with rearward outlet size 9/16-18 and secondary outlet thread diameter 7/16-24
• Compatible specifically with Ford F-350 models

Product Features and Specifications

The Dorman M39876 brake master cylinder is crafted from aluminum, providing strength and corrosion resistance essential for brake hydraulics. Its 1.313-inch bore diameter is designed to match the original equipment specifications for the Ford F-350, ensuring proper hydraulic pressure and pedal feel. This unit includes a reservoir and sensor, allowing for fluid level monitoring and integration with the vehicle’s brake warning system. Featuring two outlets, the master cylinder supports dual-circuit brake systems with precise outlet thread sizes of 9/16-18 for the rearward outlet and 7/16-24 for the secondary outlet, facilitating a secure and leak-free connection.

Applications and Problem Resolution

• Restores brake hydraulic pressure in Ford F-350 trucks
• Replaces worn or leaking master cylinders causing brake fluid loss
• Addresses brake pedal sinking or sponginess due to internal seal failure
• Resolves brake warning light activation related to sensor or fluid level issues
• Improves overall brake system reliability and safety

Installation Notes and Tips

Installation of the Dorman M39876 master cylinder requires proper brake fluid handling and bleeding procedures to avoid air in the brake lines. Note that mounting hardware is not included, so retain original fasteners or acquire appropriate replacements. Ensure the sensor connector is properly attached to maintain brake warning system functionality. It is recommended to inspect related brake components during installation for optimal system performance.

Quality Assurance and Warranty

Dorman manufactures this brake master cylinder to meet or exceed OEM standards for fit, form, and function. The aluminum construction offers durability against corrosion and wear. This part is backed by Dorman’s limited warranty, providing coverage against defects in material and workmanship under normal use conditions.