Dorman CM640105 Clutch Master Cylinder

Clutch Master Cylinder for Subaru Manual Transmissions

This Dorman clutch master cylinder is a direct replacement for specific Subaru manual transmission applications. Built with an aluminum body and a 0.625 bore diameter, it is engineered to match original equipment design for reliable clutch hydraulic operation.

Key Features

• Direct replacement clutch master cylinder for manual transmission systems
• Aluminum construction with metallic finish
• 0.625 bore diameter for OE-style hydraulic performance
• Outlet thread size: M10 x 1.0
• Standard replacement grade for select Subaru applications
• Cross-references AMS Automotive M1505 and Centric Parts 136.47005 for the same application

Detailed Description

Dorman CM640105 is a clutch master cylinder designed for Subaru Forester, Subaru Impreza, and Subaru Outback manual transmission vehicles in the listed model years. It is built to follow the original equipment design so the hydraulic clutch system can maintain proper pedal feel and fluid transfer. The aluminum housing and OE-style port dimensions support a straightforward replacement on vehicles that need a new clutch master cylinder, including 2003-2007 Subaru Forester, 2004-2007 Subaru Impreza, and 2006 Subaru Outback. If you are searching for a Subaru Forester clutch master cylinder or a Subaru Impreza clutch master cylinder, CM640105 is a direct-fit service part for those applications.

Common Issues This Part Can Address

• Clutch pedal sinking or losing pressure
• Visible brake fluid leakage at the master cylinder
• Difficulty disengaging the clutch
• Inconsistent or soft clutch pedal response
• Hydraulic clutch system malfunction on manual transmission Subaru models

Installation Notes and Tips

Verify the bore diameter, outlet thread size, and port thread diameter before installation. Confirm the vehicle’s year, make, and model against the fitment list for a proper match. After installation, bleed the clutch hydraulic system thoroughly to remove air and restore normal pedal operation. This part number is Dorman CM640105.

Quality Assurance

Dorman manufactures this clutch master cylinder as a standard replacement part for specific OE applications. The design is based on original equipment dimensions to support consistent fit and function in the listed Subaru vehicles.