Dorman - First Stop Clutch Master Cylinder P/N:CM640201
When the clutch master cylinder starts leaking or the pedal turns soft, the Dorman - First Stop Clutch Master Cylinder CM39931 gives you a direct-fit hydraulic replacement. It drops in for the 1990-1997 Geo Prizm (L4-1.6L), 1993-1997 Geo Prizm (L4-1.8L), 1990-1997 Toyota Corolla (L4-1.6L), 1993-2002 Toyota Corolla (L4-1.8L), and 1998-2002 Chevrolet Prizm (L4-1.8L).
Mounted at the clutch pedal, this cylinder converts pedal force into hydraulic pressure that travels to the slave cylinder to disengage the clutch as you shift. If a worn or leaking master cylinder is the cause of a spongy pedal or hard shifting, this unit replaces it.
Country of origin: China. Manufacturer part number CM39931.
What does this clutch master cylinder do?
Mounted at the clutch pedal, it converts your pedal force into hydraulic pressure that travels to the slave cylinder, disengaging the clutch so you can shift gears.
Which vehicles does the CM39931 fit?
It fits the 1990-1997 Geo Prizm (L4-1.6L), 1993-1997 Geo Prizm (L4-1.8L), 1990-1997 Toyota Corolla (L4-1.6L), 1993-2002 Toyota Corolla (L4-1.8L), and 1998-2002 Chevrolet Prizm (L4-1.8L).
What are signs my clutch master cylinder may need replacing?
A leaking cylinder, a soft or spongy clutch pedal, or trouble shifting can be signs. Diagnose the cause first, as other hydraulic clutch parts can produce similar symptoms.
What is the bore size of this cylinder?
The inside diameter (bore) is 0.625 in.
What kind of fluid components does it use?
It includes high-grade rubber components made for compatibility with standard brake fluid.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.