Dorman CM640154 Clutch Master Cylinder

Clutch Master Cylinder for Ram and Dodge Trucks

This Dorman clutch master cylinder is a direct replacement for specific Ram and Dodge Ram heavy-duty trucks. It is precision-engineered to match the original equipment design for reliable clutch hydraulic performance in 2005-2013 applications.

• Direct replacement clutch master cylinder for manual transmission systems
• Standard replacement grade for service and repair work
• Built to match OE design for proper fit and function
• Bore diameter specifications: 16 mm and 22 mm
• Package contents: clutch master cylinder

Fitment Details

• Fits 2011-2013 Ram 2500, N/A
• Fits 2011 Ram 3500, N/A
• Fits 2005-2010 Dodge Ram 2500, N/A
• Fits 2005-2010 Dodge Ram 3500, N/A

Product Overview

Dorman CM640154 is a clutch master cylinder for manual transmission repair on Ram 2500, Ram 3500, Dodge Ram 2500, and Dodge Ram 3500 trucks. It is engineered as an OE-style replacement for vehicles with a leaking or malfunctioning clutch hydraulic master cylinder, helping restore consistent pedal response and hydraulic pressure. This part cross-references LuK LMC480 for the same application.

Common Repair Symptoms

• Clutch pedal sinks or feels inconsistent
• Hydraulic fluid leakage at the master cylinder
• Difficulty disengaging the clutch
• Soft or spongy clutch pedal feel
• Loss of clutch hydraulic pressure

Installation Notes and Tips

Verify vehicle year, make, model, and manual transmission application before installation. Inspect the clutch hydraulic system for leaks, air in the lines, and worn related components during service. Confirm bore diameter and OE-style mounting and connection points match the original unit before installation.

Quality Assurance

Dorman manufactures this clutch master cylinder as a standard replacement part engineered to match original equipment design for the listed Ram and Dodge Ram applications. Part number CM640154 is intended for direct-fit service on confirmed vehicle listings.