Dorman CM640050 Clutch Master Cylinder

Brand Dorman CM640050
Bore Diameter 0.625
Item Grade Standard Replacement
Package Contents Clutch Master Cylinder
Fits Nissan · 10 vehicles

Direct replacement. Precision-engineered to match the original equipment design.

Standard replacement. A dependable clutch master cylinder for restoring hydraulic operation.

Clutch master cylinder for manual transmission hydraulic systems.

Cross-references AMS Automotive M0633, Beck/Arnley 072-9499 and Centric Parts 136.42021 for the same application. See all 11.

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Clutch Master Cylinder for Nissan Manual Transmissions

This Dorman clutch master cylinder is a direct replacement for specific Nissan applications and is precision-engineered to match original equipment design. It is built for vehicles with a 0.625 bore diameter and standard replacement requirements, making it a practical choice for restoring clutch hydraulic performance on the 2002-2006 Nissan Altima and 2003-2007 Nissan Maxima.

Key Features

  • Direct replacement clutch master cylinder for manual transmission hydraulic systems
  • 0.625 bore diameter for the specified OE-style application
  • Standard replacement grade for everyday service use
  • Designed to match original equipment design in specific vehicle years, makes, and models
  • Package contents: clutch master cylinder

Detailed Description

Dorman CM640050 is a clutch master cylinder engineered for exact-fit replacement in select Nissan vehicles. It is built around the original equipment design to help restore consistent hydraulic pressure at the clutch pedal and slave cylinder circuit. This part cross-references Beck/Arnley 072-9499 for the same application. Use CM640050 when servicing a 2002-2006 Nissan Altima or a 2003-2007 Nissan Maxima with the specified 5/8-inch bore size.

What It Helps Fix

  • Clutch pedal that sinks or feels inconsistent
  • Hydraulic fluid leakage at the master cylinder
  • Difficulty disengaging the clutch
  • Soft or spongy clutch pedal response
  • Loss of hydraulic pressure in the clutch system

Installation Notes and Tips

Verify bore diameter and vehicle application before installation. This part is listed for 2002-2006 Nissan Altima and 2003-2007 Nissan Maxima, with notes indicating compatibility with drum brake wheel cylinders featuring a 5/8-inch bore size. After installation, bleed the hydraulic system thoroughly to remove air and confirm proper pedal feel and clutch release.

Quality Assurance

Dorman manufactures this clutch master cylinder as a standard replacement part designed to match OE fit and function for the listed Nissan applications. Part number CM640050 is intended for direct replacement service in manual transmission hydraulic systems.

This part fits 10 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2007NissanMaximaN/ACompatible with drum brake wheel cylinders featuring a 5/8" bore size.
2006NissanAltimaN/ACompatible with drum brake wheel cylinders featuring a 5/8" bore size.
2006NissanMaximaN/ACompatible with drum brake wheel cylinders featuring a 5/8" bore size.
2005NissanAltimaN/ACompatible with drum brake wheel cylinders featuring a 5/8" bore size.
2005NissanMaximaN/ACompatible with drum brake wheel cylinders featuring a 5/8" bore size.
2004NissanAltimaN/ACompatible with drum brake wheel cylinders featuring a 5/8" bore size.
2004NissanMaximaN/ACompatible with drum brake wheel cylinders featuring a 5/8" bore size.
2003NissanAltimaN/ACompatible with drum brake wheel cylinders featuring a 5/8" bore size.
2003NissanMaximaN/ACompatible with drum brake wheel cylinders featuring a 5/8" bore size.
2002NissanAltimaN/ACompatible with drum brake wheel cylinders featuring a 5/8" bore size.
Directly replaces or cross-references 11 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
AMS Automotive — M0633Beck/Arnley — 072-9499Centric Parts — 136.42021LuK — LMC439PERFECTION — 800030Quality-Built — 13978306108J1306108J100CM1418CM140477CM452320