Dorman M630886 Brake Master Cylinder

Overview of Dorman Brake Master Cylinder M630886

The Dorman Brake Master Cylinder M630886 is engineered for reliable brake hydraulics performance in Ford trucks. Designed specifically for Ford F-250 Super Duty, F-350, and F-350 Super Duty models, this master cylinder ensures consistent braking response and safety.

• Master cylinder bore diameter: 1.5 inches
• Constructed from durable cast iron material
• Includes a removable reservoir for easy maintenance
• Equipped with a sensor for brake fluid level monitoring
• Two outlet ports with rearward outlet size M14x1.5 and secondary outlet thread diameter M12x1.5
• Package contains the master cylinder unit only; mounting hardware not included

Detailed Product Description

The Dorman M630886 brake master cylinder is built with a 1.5-inch bore diameter cast iron body, providing strength and durability required for heavy-duty braking systems. Its removable reservoir design allows for straightforward fluid inspection and replacement, while the included sensor helps monitor brake fluid levels to maintain optimal system performance. Featuring two outlets, the master cylinder supports dual-circuit brake systems with rearward outlet threading of M14x1.5 and a secondary outlet thread diameter of M12x1.5, ensuring compatibility with the hydraulic lines on Ford F-250 Super Duty, F-350, and F-350 Super Duty trucks.

Common Applications and Problem Resolution

• Restores proper brake fluid pressure in Ford F-250 Super Duty and F-350 models
• Addresses brake pedal sinking or sponginess due to master cylinder wear
• Resolves brake fluid leaks from the master cylinder reservoir or outlets
• Improves brake system responsiveness and safety
• Replaces faulty brake fluid level sensors to prevent warning light issues

Installation Notes and Tips

Installation of the Dorman M630886 master cylinder requires careful attention to brake system bleeding procedures to avoid air entrapment. Since mounting hardware is not included, retain original fasteners or source compatible hardware. Ensure the removable reservoir is securely seated and the sensor is properly connected to maintain accurate fluid level monitoring. This part is designed for direct replacement on compatible Ford F-250 Super Duty, F-350, and F-350 Super Duty trucks.

Quality Assurance and Warranty

Dorman manufactures this brake master cylinder to meet or exceed OEM specifications for fit, form, and function. The cast iron construction and integrated sensor contribute to long service life and reliable operation. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in materials and workmanship for this part number M630886.