Every time you press the clutch pedal, the clutch master cylinder turns that push into hydraulic pressure and feeds fluid to the slave cylinder to disengage the clutch so you can shift. The Dorman - First Stop Clutch Master Cylinder (CM640050) drops in as a direct-fit replacement for the 2002-2006 Nissan Altima (L4-2.5L and V6-3.5L) and the 2003-2007 Nissan Maxima (V6-3.5L).
Backed by a team of engineers and quality control experts in the United States. If a leaking or malfunctioning clutch master cylinder is the cause of your sinking pedal or trouble shifting, this unit replaces it.
Interchange: M0633 · 072-9499 · 0729499 · 13978 · 136.42021 · CM452320 · LMC439 · 306108J1 · CM1418 · 306108J100 · 800030 · CM140477 · F140477
Manufacturer part number CM640050.
This part cross-references / interchanges with the following part numbers:
What does a clutch master cylinder do?
When you press the clutch pedal, it generates hydraulic pressure and sends fluid to the slave cylinder to disengage the clutch, allowing you to shift gears.
What vehicles does CM640050 fit?
It's a direct-fit replacement for the 2002-2006 Nissan Altima (L4-2.5L and V6-3.5L) and the 2003-2007 Nissan Maxima (V6-3.5L). Check the Buyer's Guide tab to confirm your vehicle.
What fluid is it compatible with?
It includes high-grade rubber components made for compatibility with standard brake fluid. Consult your vehicle service information for the correct fluid specification.
What are the signs this part may need replacing?
Signs it may need replacing include a soft, spongy, or sinking clutch pedal, difficulty shifting, or fluid leaking at the cylinder. Diagnose the cause first, since other parts can cause these symptoms.
What part numbers does it interchange with?
It interchanges with M0633, 072-9499, 0729499, 13978, 136.42021, CM452320, LMC439, 306108J1, CM1418, 306108J100, 800030, CM140477, and F140477.
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.