Standard Ignition TCS110 Automatic Transmission Control Solenoid

Transmission Control Solenoid for OE-Style Shifting

Standard Ignition TCS110 is an automatic transmission control solenoid assembly built for direct service replacement in select GM applications. It uses OE-matching connectors and terminals for a secure connection to the engine wire harness, along with matched resistance and inductance for proper electrical performance.

For vehicles such as the Buick Lucerne, Cadillac DTS, Chevrolet Express 2500, and GMC Savana 3500, this transmission control solenoid helps restore consistent pressure control and transmission operation when the original unit is worn or electrically out of spec.

Key Features

• OE-matching connector and terminal design for precise harness connection
• Resistance and inductance matched to OE standards
• 100% copper winding for positive valve actuation on command
• Precision-machined mounting surface for sealing at the transmission case
• Metal and plastic construction for service replacement use
• Female rectangular connector with male blade terminals
• Push-on attachment method with no wiring harness included

Detailed Description

The Standard Ignition TCS110 transmission control solenoid assembly is engineered for automatic transmission pressure control service where accurate electrical response and a reliable seal matter. Its OE-style connector and terminal layout supports a clean installation, while the precision-machined mounting surface helps the unit seat properly against the transmission case. This part cross-references 24225320 and TCS653 for the same application.

Compatible With select 2004-2011 GM vehicles, including Fits 2006-2011 Buick Lucerne, N/A; Fits 2006-2011 Cadillac DTS, N/A; Fits 2004-2009 Chevrolet Express 2500, N/A; Fits 2005-2009 Chevrolet Express 3500, N/A; Fits 2004-2009 GMC Savana 2500, N/A; Fits 2006-2009 GMC Savana 3500, N/A; Fits 2006-2007 GMC Yukon, N/A; Fits 2004-2007 GMC Yukon XL 2500, N/A; Fits 2005 GMC Savana 3500, N/A w/ 16 Bolt Transmission Pan; and Fits 2004-2005 Pontiac Bonneville, N/A.

What It Helps Correct

• Harsh or inconsistent transmission pressure control
• Delayed or erratic shift behavior related to solenoid performance
• Electrical connection issues at the transmission harness interface
• Sealing concerns at the transmission case mounting surface
• Faults traced to a pressure control solenoid in the transmission control circuit

Installation Notes and Tips

Verify the transmission application, connector style, and case mounting surface before installation. The TCS110 uses a female rectangular connector with two male blade terminals and a push-on attachment method, so the harness connection should align cleanly without forcing the terminals. No gasket, hardware, mounting bracket, or wiring harness is included.

For best results, inspect the transmission connector, case sealing area, and related wiring for wear or contamination before replacing the solenoid assembly. Confirm the vehicle-specific notes, especially on applications such as the 2005 GMC Savana 3500 with a 16-bolt transmission pan.

Quality Assurance

Standard Ignition builds this solenoid assembly to OE-matching electrical and fitment standards, with matched resistance and inductance and a precision-machined mounting surface for proper function and sealing. The TCS110 is a service replacement part designed for direct-fit transmission repair work.