Dorman CM640181 Clutch Master Cylinder

Overview of Dorman Clutch Master Cylinder CM640181

The Dorman Clutch Master Cylinder CM640181 is designed specifically for Pontiac GTO models, providing reliable clutch hydraulic performance. This standard replacement part ensures proper clutch operation with precise bore diameter and thread specifications.

• Bore diameter: 0.75 inches for accurate hydraulic pressure
• Outlet thread size: M10 x 1.0 for secure fluid connection
• Port thread diameter: 10 mm for compatibility with clutch lines
• Standard replacement grade for dependable function
• Includes clutch master cylinder in package contents

Technical Details and Specifications

The Dorman CM640181 clutch master cylinder features a 0.75-inch bore diameter, which is critical for maintaining the correct hydraulic pressure needed to engage and disengage the clutch smoothly. The outlet thread size of M10 x 1.0 and a port thread diameter of 10 mm ensure compatibility with the clutch hydraulic system of the Pontiac GTO. This part is manufactured to meet standard replacement quality, making it suitable for restoring clutch system performance without modification.

Compatible Vehicles and Fitment

This clutch master cylinder is compatible with Pontiac GTO models, providing a direct replacement for the original equipment part. Using the Dorman CM640181 ensures proper fit and function within the manual transmission system of the Pontiac GTO, maintaining the vehicle’s clutch responsiveness and reliability.

Common Applications and Problem Resolution

• Restores clutch hydraulic pressure for smooth pedal operation
• Eliminates clutch pedal sponginess or sinking issues
• Resolves fluid leaks from the master cylinder
• Prevents clutch engagement failure due to worn or damaged master cylinder
• Addresses inconsistent clutch disengagement during gear shifts

Installation Notes and Tips

When installing the Dorman CM640181 clutch master cylinder, ensure the hydraulic system is properly bled to remove air and maintain consistent clutch pedal feel. Verify thread compatibility with existing clutch lines using the M10 x 1.0 outlet thread and 10 mm port thread diameter. It is recommended to inspect related clutch components during installation for optimal system performance.

Quality Assurance and Warranty

Dorman manufactures the CM640181 clutch master cylinder to meet standard replacement specifications, ensuring reliable operation within the Pontiac GTO clutch system. This part undergoes quality control testing to confirm fitment and function. Warranty coverage details can be obtained from the product documentation or manufacturer.