Dorman CM25517 Clutch Master Cylinder

Clutch Master Cylinder Replacement

Dorman CM25517 is a standard replacement clutch master cylinder for manual transmission systems that need a direct OE-style repair. It is precision-engineered to match the original equipment design for specific vehicle applications, including Ford Mustang and Ford Bronco fitments.

With a 1.063 bore diameter, this clutch master cylinder is built to restore hydraulic clutch operation when the original unit is leaking or no longer functioning correctly. The CM25517 is a direct replacement for select Ford Mustang and Ford Bronco applications.

Key Features

• 1.063 bore diameter for OE-style hydraulic clutch performance
• Standard replacement grade for manual transmission service
• Direct replacement design matched to original equipment dimensions
• Includes clutch master cylinder only
• Cross-references Remy 11159 and RhinoPac M0735 for the same application

Detailed Description

The Dorman CM25517 clutch master cylinder is engineered for specific manual transmission vehicles where the original hydraulic unit has developed leaks, internal wear, or inconsistent pedal response. Its OE-matched design supports proper clutch hydraulic pressure and pedal feel in applications such as Ford Mustang and Ford Bronco. If you are searching for a clutch master cylinder for Ford Mustang or a replacement clutch master cylinder for Ford Bronco, CM25517 is built for those exact vehicle-specific needs.

This part number, CM25517, is intended as a direct-fit replacement in applications where the factory master cylinder uses a 1.063 bore diameter and standard replacement configuration.

Common Problems This Part Can Address

• Clutch fluid leaking from the master cylinder
• Soft or inconsistent clutch pedal feel
• Difficulty disengaging the clutch
• Loss of hydraulic pressure in the clutch system
• Wear-related failure of the original master cylinder

Installation Notes and Tips

Verify the bore diameter and OE part match before installation. Inspect the hydraulic line, clutch pedal linkage, and surrounding components for wear or contamination during service. After installation, bleed the clutch hydraulic system according to the vehicle service procedure to remove trapped air and restore proper pedal operation.

Quality Assurance

Dorman manufactures this clutch master cylinder as a direct replacement part engineered to match original equipment design for specific applications. CM25517 is built to standard replacement specifications for reliable service in the correct vehicle fitment.