Clutch Select & TCC Valve Kit for GM 6L45 6L50 6L80 6L90 2007-2014

Clutch Select & TCC Valve Kit for GM 6L45, 6L50, 6L80, and 6L90 automatic transmissions, 2007–2014

Manufacturer: TransGo
Manufacturer Part Number: 6L8-CS-TCC
Product Type: Clutch Select Valve And TCC Regulator Valve Kit

Improve hydraulic valve operation with this targeted TransGo repair kit. The included hardened steel clutch select valves help reduce sticking or dragging, while the redesigned torque converter clutch regulator valve and calibrated spring support more accurate converter clutch pressure and slip control.

Designed To Address:

• Low-speed torque converter clutch surging

• Erratic lockup cycling

• TCC cycling during cylinder deactivation

• Shift solenoid performance faults caused by sticking clutch select valves

• False P0751 codes associated with clutch select valve operation

Design Features:

• USA-made hardened steel replacement valves

• Drop-in valve design

• Longer TCC regulator valve lands that engage previously unused bore surfaces

• Calibrated TCC regulator spring for improved hydraulic control

Package Contents:

• One TCC regulator valve

• One TCC regulator calibration spring

• Two clutch select valves

• Two clutch select valve springs for updated OEM separator plate applications

Fitment And Installation:

Fits the listed GM 6L45, 6L50, 6L80, and 6L90 transmission applications within the advertised 2007–2014 range. Confirm transmission identification and valve body configuration rather than relying on vehicle year alone.

Follow TransGo instructions for separator plate identification and spring selection. Professional installation and diagnosis are recommended. This kit does not replace damaged clutch packs, a worn torque converter, or faulty electrical components.

For post-installation fluid service, consider Lubegard ATF products only when compatible with the vehicle’s required transmission fluid specification. Transmission fluid is not included.