Dorman CM640006 Clutch Master Cylinder

Reliable Clutch Master Cylinder for Ford and Mazda Trucks

The Dorman CM640006 clutch master cylinder is designed as a standard replacement part for manual transmission systems. Engineered with a 0.625-inch bore diameter, this component ensures consistent hydraulic pressure for smooth clutch operation in select Ford and Mazda trucks.

• Standard replacement grade for dependable performance
• 0.625-inch bore diameter optimized for precise hydraulic control
• Includes clutch master cylinder unit ready for installation
• Compatible with Ford Ranger and Mazda B2300, B2500, B3000, B4000 models
• Durable construction to maintain clutch system integrity

Product Details and Specifications

The Dorman CM640006 clutch master cylinder is manufactured to meet OEM specifications, providing a reliable hydraulic interface between the clutch pedal and the transmission. Its 0.625-inch bore diameter is critical for maintaining the correct fluid pressure needed to engage and disengage the clutch smoothly. This part is a direct replacement for worn or damaged clutch master cylinders on manual transmission vehicles, specifically designed for Ford Ranger and Mazda B-series trucks including B2300, B2500, B3000, and B4000 models. The package contains the clutch master cylinder unit, ready to install without additional components.

Compatible Vehicles and Applications

This clutch master cylinder is compatible with the following vehicles:

• Ford Ranger (various model years)
• Mazda B2300
• Mazda B2500
• Mazda B3000
• Mazda B4000

It is designed to restore proper clutch pedal feel and hydraulic function in these manual transmission trucks.

Common Issues Addressed by This Part

• Clutch pedal feels spongy or soft
• Difficulty shifting gears due to hydraulic failure
• Fluid leaks from the clutch master cylinder
• Clutch not fully disengaging during operation
• Reduced clutch system responsiveness

Installation Notes and Tips

When installing the Dorman CM640006 clutch master cylinder, ensure the hydraulic system is properly bled to remove air pockets. Verify the bore diameter matches the original part to maintain correct hydraulic pressure. Use appropriate tools to avoid damage to the cylinder or surrounding components. It is recommended to inspect the clutch slave cylinder and related hydraulic lines during installation for a comprehensive clutch system service.

Quality Assurance and Warranty

Dorman manufactures this clutch master cylinder to meet industry standards for durability and performance. The CM640006 is a standard replacement grade part backed by Dorman's quality control processes. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in materials and workmanship to ensure customer confidence in the product.