Dorman CM640118 Clutch Master Cylinder

Dorman CM640118 Clutch Master Cylinder

The Dorman CM640118 clutch master cylinder is a standard replacement for vehicles with a leaking or malfunctioning hydraulic clutch system. Built to match the original equipment design for specific applications, it supports reliable clutch pedal hydraulic operation in Ford Super Duty trucks.

Key Features

• Standard replacement clutch master cylinder for manual transmission hydraulic systems
• Precision-engineered to match original equipment design
• Integral reservoir configuration for the listed Ford applications
• Direct replacement for 2004-2010 Ford F-250 and F-350 Super Duty models in confirmed fitments
• Part number CM640118 for easy identification and ordering

Detailed Description

This Dorman clutch master cylinder is built for direct replacement use in select Ford trucks, including 2005-2010 Ford F-250 Super Duty, 2004-2010 Ford F-350 Super Duty, 2008 Ford F-250, 2004-2005 Ford F-250, and 2004-2008 Ford F-350 applications with an integral reservoir. It is intended for drivers replacing a worn hydraulic clutch master cylinder on manual transmission vehicles where consistent pedal feel and hydraulic pressure are required. The CM640118 cross-references AMS Automotive M0727 and Perfection 800082 for the same application.

Common Issues This Part Addresses

• Clutch fluid leaking from the master cylinder
• Soft, inconsistent, or sinking clutch pedal feel
• Difficulty disengaging the clutch during shifting
• Hydraulic clutch performance loss caused by internal cylinder wear
• Replacement need after original equipment failure

Installation Notes and Tips

Verify the vehicle year, make, model, and integral reservoir configuration before installation. This clutch master cylinder is listed for manual transmission applications in Ford F-250 and Ford F-350 Super Duty trucks, so confirm the hydraulic layout matches the original part. After installation, the clutch hydraulic system should be properly filled and bled according to the vehicle service procedure to restore normal pedal operation.

Quality Assurance

Dorman manufactures this part as a standard replacement component engineered to follow the original equipment design for the listed applications. Part number CM640118 is built for direct-fit use in confirmed Ford Super Duty fitments.