Sonnax 84754-98K Oversized TCC Apply Valve Kit for GM Transmission - 4T60-E

The Sonnax 84754-98K is an oversized TCC (Torque Converter Clutch) apply valve kit designed specifically for GM 4T60-E automatic transmissions. This precision-engineered valve kit addresses common torque converter clutch problems that cause transmission performance issues and diagnostic trouble codes.

Key Features:

• Oversized design restores worn valve body bores to proper hydraulic integrity
• PTFE seal prevents loss of signal oil that strokes the valve
• Corrects TCC slip codes and converter cycling issues
• Addresses larger changes in slip RPM as converter cycles from apply to full release
• Professional-grade solution for worn TCC apply valve assemblies

The TCC apply valve acts as the switch valve for converter apply and release. When the apply valve becomes worn, it often returns to the unapply position even though the TCC apply solenoid remains energized. This Sonnax oversized valve kit provides a permanent repair solution by reconditioning the bore and restoring proper valve operation. Designed for professional transmission rebuilders and technicians working on GM 4T60-E units.