Dorman - First Stop Clutch Master Cylinder P/N:CM640141
When the clutch pedal turns soft or gears get hard to select, the Dorman - First Stop Clutch Master Cylinder CM640010 is a direct replacement that converts clutch-pedal force into the hydraulic pressure used to disengage the clutch. It drops in on the 1992-1995 BMW 318I (L4-1.8L), the 1992-1995 325IS and 1994-1995 325I (L6-2.5L), the 1995 318IS and 318TI (L4-1.8L), and the 1995 M3 (L6-3.0L).
Country of origin: Italy. If a leaking or worn clutch master cylinder is the cause of a spongy pedal or trouble shifting, this unit replaces it; diagnose the hydraulic system first, since the slave cylinder or other components can produce the same symptoms.
Interchange: M0308 · M903286 · Q-04008 · Q04008 · 21511162149 · 21521159031 · 21521162148 · 21521162303 · 21526750546 · 22526758830 · 072-8914 · 0728914 · 13121 · 136.34008 · 137.34008 · CM250560 · CM452140 · CM1426 · 350147 · CMA350147 · CM126781 · CM140447 · F126781 · F140447. Manufacturer part number CM640010.
This part cross-references / interchanges with the following part numbers:
What does this clutch master cylinder do?
It converts force from the clutch pedal into hydraulic pressure that travels to the slave/release mechanism to disengage the clutch, letting you shift gears. It uses standard brake fluid.
Which vehicles does CM640010 fit?
The 1992-1995 BMW 318I (L4-1.8L), 1992-1995 325IS and 1994-1995 325I (L6-2.5L), 1995 318IS and 318TI (L4-1.8L), and 1995 M3 (L6-3.0L). See the Buyer's Guide tab to confirm your vehicle.
What is the bore size?
This clutch master cylinder has a 0.75-inch inside diameter.
What fluid does it use?
It includes high-grade rubber components compatible with standard brake fluid, which is what these hydraulic clutch systems use.
What are signs this clutch master cylinder may need replacing?
A soft or sinking clutch pedal, fluid leaks, or difficulty disengaging the clutch and shifting can be signs. Diagnose the system first, since the slave cylinder or other parts can cause the same symptoms.
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.