Dorman CM640123 Clutch Master Cylinder

Brand Dorman CM640123
Item Grade Standard Replacement
Package Contents Clutch Master Cylinder
Fits INFINITI and Nissan · 9 vehicles

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

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

Cross-references Centric Parts 136.42022, LuK LMC438 and PERFECTION 800053 for the same application. See all 5.

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Clutch Master Cylinder Replacement

This Dorman clutch master cylinder is a standard replacement for manual transmission service on select INFINITI G35 and Nissan 350Z applications. Part number CM640123 is engineered to match the original equipment design for a direct-fit repair when the clutch master cylinder is leaking or malfunctioning.

  • Standard replacement clutch master cylinder for manual transmission systems
  • Direct replacement design for OE-style fit and function
  • Built for select 2003-2007 INFINITI G35 and 2003-2006 Nissan 350Z applications
  • Package contents: clutch master cylinder
  • Cross-reference: LuK LMC438

Fitment Details

Fits 2004-2007 INFINITI G35, N/A. Fits 2004-2006 Nissan 350Z, N/A. Fits 2003 INFINITI G35, N/A, with models from June 2003 onward and a 5/8 inch bore. Fits 2003 Nissan 350Z, N/A, with 5/8 inch bore and from 3/03.

CM640123 is a direct replacement clutch master cylinder for drivers addressing hydraulic clutch issues on the INFINITI G35 and Nissan 350Z. It is precision-engineered to follow the original equipment design, which helps maintain proper clutch pedal hydraulic operation in the specified manual transmission applications.

Common Repair Symptoms

  • Clutch fluid leakage at the master cylinder
  • Soft or inconsistent clutch pedal feel
  • Difficulty disengaging the clutch
  • Hydraulic clutch pressure loss
  • Clutch engagement problems during shifting

Installation Notes

Verify bore size and model-year coverage before installation, especially for 2003 vehicles with the listed production-date notes. Confirm the hydraulic line connection and bleed the clutch system after installation to remove trapped air and restore pedal feel.

Quality Assurance

Dorman standard replacement components are built to match original equipment design requirements for the listed applications. Part number CM640123 is intended for direct replacement service on the specified INFINITI G35 and Nissan 350Z fitments.

This part fits 9 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2007INFINITIG35N/ACompatible with drum brake wheel cylinders featuring a 5/8" bore size.
2006INFINITIG35N/ACompatible with drum brake wheel cylinders featuring a 5/8" bore size.
2006Nissan350ZN/ACompatible with drum brake wheel cylinders featuring a 5/8" bore size.
2005INFINITIG35N/ACompatible with drum brake wheel cylinders featuring a 5/8" bore size.
2005Nissan350ZN/ACompatible with drum brake wheel cylinders featuring a 5/8" bore size.
2004INFINITIG35N/ACompatible with drum brake wheel cylinders featuring a 5/8" bore size.
2004Nissan350ZN/ACompatible with drum brake wheel cylinders featuring a 5/8" bore size.
2003INFINITIG35N/AFitment note: "Fits models from June 2003 onwards with a 5/8 inch bore."
2003Nissan350ZN/ABore: 5/8 In.; From 3/03
Directly replaces or cross-references 5 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Centric Parts — 136.42022LuK — LMC438PERFECTION — 80005330610CD00BCM142232