Dorman CM640078 Clutch Master Cylinder

Reliable Clutch Master Cylinder for Chevrolet Aveo and Pontiac G3

The Dorman CM640078 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 Chevrolet Aveo and Pontiac G3 models.

Key Features of the Dorman CM640078 Clutch Master Cylinder

• Standard replacement grade for dependable performance
• Precisely engineered 0.625-inch bore diameter for optimal hydraulic function
• Includes clutch master cylinder unit ready for installation
• Compatible with Chevrolet Aveo and Pontiac G3 manual transmissions
• Manufactured by Dorman, a trusted name in automotive replacement parts

Detailed Product Description

The Dorman CM640078 clutch master cylinder is a critical component in the hydraulic clutch system of select Chevrolet and Pontiac vehicles. Its 0.625-inch bore diameter is designed to provide the correct hydraulic pressure needed to engage and disengage the clutch smoothly. This standard replacement part meets OEM specifications, making it suitable for restoring clutch function in manual transmission Chevrolet Aveo and Pontiac G3 models. The package includes the clutch master cylinder itself, simplifying the replacement process.

Common Applications and Issues Addressed

• Restores clutch hydraulic pressure for proper pedal feel
• Eliminates clutch engagement problems caused by master cylinder failure
• Resolves fluid leaks that lead to clutch slippage or incomplete disengagement
• Addresses spongy or soft clutch pedal issues
• Prevents transmission damage due to improper clutch operation

Installation Notes and Tips

• Ensure compatibility with Chevrolet Aveo and Pontiac G3 manual transmission models before installation
• Bleed the clutch hydraulic system thoroughly after installation to remove air pockets
• Inspect related components such as the clutch slave cylinder and hydraulic lines for wear
• Use proper tools to avoid damage to the cylinder or surrounding parts during replacement

Quality Assurance and Warranty

Dorman manufactures the CM640078 clutch master cylinder to meet industry standards for durability and performance. This standard replacement part undergoes quality control testing to ensure reliable operation. While specific warranty details may vary, Dorman typically offers coverage against defects in materials and workmanship to support long-term use in Chevrolet Aveo and Pontiac G3 vehicles.