Dorman CM640222 Clutch Master Cylinder

Brand Dorman CM640222
Material Aluminum
Outlet Quantity 1
Reservoir Included Yes
Bore Diameter 0.75
Color/Finish Zinc finish
Cylinder Type Piston
Item Grade Standard replacement
Outlet Thread Size M10 x 1.0
Package Contents 1 clutch master cylinder
Pre-bled/Pre-filled No
Reservoir Type Attached
Fits Toyota · 3 vehicles

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

Aluminum construction. Lightweight cylinder with a zinc finish for added corrosion resistance.

Attached reservoir. Standard replacement clutch master cylinder with a piston design.

Cross-references AMS Automotive M1634, Centric Parts 136.44313 and LuK LMC491 for the same application. See all 7.

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Dorman CM640222 Clutch Master Cylinder

Dorman CM640222 is a direct replacement clutch master cylinder for manual transmission service on select Toyota Tundra trucks. It is precision-engineered to match the original equipment design for a reliable replacement when the clutch master cylinder is leaking or malfunctioning.

Key Features

  • Direct replacement for the original clutch master cylinder
  • Aluminum construction with zinc finish
  • Attached reservoir included
  • 0.75 bore diameter with piston cylinder design
  • Single outlet with M10 x 1.0 outlet thread size
  • Standard replacement grade for select manual transmission applications

Detailed Description

This Dorman clutch master cylinder is built for 2005-2007 Toyota Tundra applications and is designed to match the OE layout and function of the original hydraulic clutch component. The aluminum body, attached reservoir, and piston-style cylinder design support consistent clutch hydraulic operation in manual transmission systems. If you are replacing a leaking or failing clutch master cylinder on a Toyota Tundra, CM640222 provides a direct-fit service part for the factory application. This part cross-references LuK (e.g., LMC491) for the same application.

Common Repair Symptoms

  • Clutch pedal feels soft or loses pressure
  • Visible hydraulic fluid leakage near the master cylinder
  • Difficulty disengaging the clutch
  • Inconsistent clutch pedal travel
  • Hydraulic clutch system malfunction on a Toyota Tundra

Installation Notes

Verify vehicle year, make, and model before installation. This clutch master cylinder is not pre-bled or pre-filled, so the hydraulic system must be bled after installation. Confirm the outlet thread size and reservoir style match the original part on your 2005-2007 Toyota Tundra. Professional installation is recommended for proper clutch pedal feel and hydraulic performance.

Quality Assurance

Dorman manufactures this replacement clutch master cylinder as a standard replacement part engineered to follow the original equipment design for the listed Toyota Tundra applications. Part number CM640222 is built for direct replacement service in manual transmission clutch hydraulic repairs.

This part fits 3 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelNotes
2007ToyotaTundra
2006ToyotaTundra
2005ToyotaTundra
Directly replaces or cross-references 7 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
AMS Automotive — M1634Centric Parts — 136.44313LuK — LMC491Sachs — SH53358001453141034030CM142934