Dorman CM640198 Clutch Master Cylinder

Reliable Clutch Master Cylinder for Toyota and Scion Models

The Dorman CM640198 clutch master cylinder is designed to provide consistent hydraulic pressure for smooth clutch operation. Engineered with a durable plastic body and metallic finish, this component is a standard replacement part compatible with select Toyota and Scion vehicles.

• Constructed from durable plastic material for corrosion resistance
• 0.625 inch bore diameter for precise hydraulic performance
• Metallic color and finish for enhanced durability
• Standard replacement grade ensuring reliable function
• Outlet thread size M10 x 1.0 for secure hydraulic line connection
• Includes clutch master cylinder only
• Port thread diameter of 10 mm for proper fitment

Product Details and Specifications

The Dorman CM640198 clutch master cylinder features a 0.625 inch bore diameter, which is critical for maintaining the correct hydraulic pressure in the clutch system. Its plastic construction offers resistance to corrosion and wear, while the metallic finish adds an extra layer of protection against environmental factors. The outlet thread size of M10 x 1.0 and port thread diameter of 10 mm ensure compatibility with the hydraulic lines on compatible vehicles. This part is designed as a standard replacement, meeting OEM specifications for reliable clutch engagement and disengagement.

Compatible Vehicles and Applications

This clutch master cylinder is compatible with various Toyota and Scion models, including:

• Toyota Corolla
• Toyota Corolla iM
• Toyota Matrix
• Toyota tC
• Toyota xB
• Scion iM
• Scion xB
• Scion tC
• Scion Yaris iA

Use the Dorman CM640198 clutch master cylinder to address common clutch hydraulic system issues such as:

• Spongy or soft clutch pedal feel
• Difficulty shifting gears smoothly
• Clutch pedal sticking or not returning properly
• Hydraulic fluid leaks from the master cylinder
• Reduced clutch engagement performance

Installation Notes and Tips

When installing the Dorman CM640198 clutch master cylinder, ensure the hydraulic lines are properly connected to the M10 x 1.0 outlet threads and the 10 mm port threads. Bleed the clutch hydraulic system thoroughly to remove any air pockets for optimal pedal feel. Verify compatibility with your specific Toyota or Scion model before installation to ensure proper fit and function.

Quality Assurance and Warranty

Dorman manufactures the CM640198 clutch master cylinder to meet or exceed OEM standards for fit, form, and function. This part is a standard replacement grade component designed for reliable performance. While specific warranty details are not provided, Dorman products typically come with a limited warranty against defects in materials and workmanship.