Dorman CM640121 Clutch Master Cylinder

Reliable Clutch Master Cylinder for Mini Cooper Models

The Dorman CM640121 clutch master cylinder is a standard replacement part designed specifically for Mini Cooper, Cooper Countryman, and Cooper Paceman models. Engineered to restore proper clutch function, this component ensures smooth and consistent clutch operation.

• Standard replacement grade for dependable performance
• Includes clutch master cylinder unit only
• Compatible with Mini Cooper, Cooper Countryman, and Cooper Paceman
• OEM-quality fit and function
• Part number CM640121 for accurate identification

Product Details and Specifications

This clutch master cylinder from Dorman is manufactured to meet the exact specifications required for Mini manual transmission systems. As a standard replacement part, it provides reliable hydraulic pressure transfer from the clutch pedal to the slave cylinder, enabling smooth gear shifts. The package contains the clutch master cylinder unit, ready for installation without additional components. Designed for Mini Cooper, Cooper Countryman, and Cooper Paceman models, this part ensures compatibility and proper fitment.

Applications and Common Issues Addressed

• Restores clutch pedal pressure and responsiveness
• Eliminates clutch pedal sponginess or sinking
• Prevents hydraulic fluid leaks in the clutch system
• Resolves difficulty in shifting gears smoothly
• Addresses clutch disengagement problems

Installation Notes and Tips

Installation of the Dorman CM640121 clutch master cylinder requires basic mechanical skills and proper tools. It is important to bleed the clutch hydraulic system thoroughly after installation to remove air and ensure optimal performance. Inspect related components such as the clutch slave cylinder and hydraulic lines for wear or damage during replacement. Follow vehicle-specific service manual instructions for torque specifications and safety precautions.

Quality Assurance and Warranty Information

Dorman provides this clutch master cylinder as a standard replacement part with quality control measures to meet OEM standards. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in materials and workmanship. Refer to Dorman’s official warranty policy for complete terms and conditions.