Aisin CMT-203 Clutch Master Cylinder

Clutch Hydraulic Replacement

The Aisin CMT-203 clutch master cylinder is an OE-manufactured hydraulic component for manual transmission systems. It is built for Toyota Tacoma applications and uses plated cylinder construction with high-heat seals for consistent hydraulic performance.

• OE-manufactured clutch master cylinder for manual transmission service
• Anodized and Kanigen-plated hydraulic cylinder construction
• High-heat ethylene propylene seals for demanding operating conditions
• Fits Toyota Tacoma applications with confirmed factory-style application coverage

Detailed Product Overview

Aisin CMT-203 is engineered as a direct hydraulic replacement for clutch master cylinder service on the Toyota Tacoma. The OE manufacturing approach and plated cylinder finish support corrosion resistance, while the ethylene propylene seal material is selected for elevated temperature exposure in hydraulic systems. This part number, CMT-203, is listed across multiple Tacoma model years, including 2005-2012 and 2015-2023 coverage, with a specific cutoff noted for 2012 production through 03/2012.

Aisin Original Equipment Manufacturer branding reflects a product line associated with factory-level hydraulic component production. For buyers searching for a Toyota Tacoma clutch master cylinder, CMT-203 provides a focused replacement option for manual transmission clutch hydraulics.

What It Is Used For

• Restoring clutch pedal hydraulic pressure
• Addressing fluid leakage at the master cylinder
• Correcting inconsistent clutch engagement or disengagement
• Replacing a worn hydraulic cylinder in manual transmission service

Installation Notes and Tips

Verify Tacoma year coverage carefully before ordering, especially for 2012 vehicles with the 03/2012 cutoff. Confirm the existing hydraulic line and mounting configuration against the original unit before installation. Proper bleeding of the clutch hydraulic system is required after replacement to restore pedal feel and engagement consistency.

Quality Assurance

This Aisin clutch master cylinder is manufactured to OE standards and uses plated hydraulic cylinder construction with high-heat seals. Part number CMT-203 is cross-referenced to Dorman - First Stop CM640104 for the same application.