Dorman ADAKIT008 HVAC Air Door Actuator Kit

Dorman ADAKIT008 HVAC Air Door Actuator Kit

Dorman ADAKIT008 is an HVAC air door actuator kit engineered for specified vehicles with front automatic temperature controls. It helps restore proper air distribution between fresh air and recirculation, hot and cold blend, and floor-to-defrost mode changes in applications such as Chevrolet Silverado 1500 and GMC Sierra 1500.

• HVAC air door actuator kit for specified vehicle applications
• Supports mode, recirculation, and blend door control functions
• Plastic body construction
• 5-pin connector with male connector and male terminal design
• 4 mounting holes for application-specific installation
• Terminal type: pin
• Wiring harness not included
• Mounting hardware not included

Fitment Coverage

• Fits 2008-2009 Hummer H2, N/A
• Fits 2007 Chevrolet Silverado 1500 Classic, N/A, w/RPO Code CJ2 (Front Automatic Temperature Controls)
• Fits 2007 Chevrolet Silverado 1500 HD Classic, N/A, w/RPO Code CJ2 (Front Automatic Temperature Controls)
• Fits 2007 Chevrolet Silverado 2500 HD Classic, N/A, w/RPO Code CJ2 (Front Automatic Temperature Controls)
• Fits 2007 Chevrolet Silverado 3500 Classic, N/A, w/RPO Code CJ2 (Front Automatic Temperature Controls)
• Fits 2007 GMC Sierra 1500 Classic, N/A, w/RPO Code CJ2 (Front Automatic Temperature Controls)
• Fits 2007 GMC Sierra 1500 HD Classic, N/A, w/RPO Code CJ2 (Front Automatic Temperature Controls)
• Fits 2007 GMC Sierra 2500 HD Classic, N/A, w/RPO Code CJ2 (Front Automatic Temperature Controls)
• Fits 2007 GMC Sierra 3500 Classic, N/A, w/RPO Code CJ2 (Front Automatic Temperature Controls)
• Fits 2003-2006 Cadillac Escalade EXT, N/A, w/RPO Code CJ2 (Front Automatic Temperature Controls)
• Fits 2003-2006 Chevrolet Avalanche 1500, N/A, w/RPO Code CJ2 (Front Automatic Temperature Controls)
• Fits 2003-2006 Chevrolet Avalanche 2500, N/A, w/RPO Code CJ2 (Front Automatic Temperature Controls)
• Fits 2003-2006 Chevrolet Silverado 1500, N/A, w/RPO Code CJ2 (Front Automatic Temperature Controls)
• Fits 2005-2006 Chevrolet Silverado 1500 HD, N/A, w/RPO Code CJ2 (Front Automatic Temperature Controls)
• Fits 2003 Chevrolet Silverado 1500 HD, N/A, w/RPO Code CJ2 (Front Automatic Temperature Controls)
• Fits 2003-2006 Chevrolet Silverado 2500, N/A, w/RPO Code CJ2 (Front Automatic Temperature Controls)
• Fits 2003-2006 Chevrolet Silverado 2500 HD, N/A, w/RPO Code CJ2 (Front Automatic Temperature Controls)
• Fits 2003-2006 Chevrolet Silverado 3500, N/A, w/RPO Code CJ2 (Front Automatic Temperature Controls)
• Fits 2003-2006 GMC Sierra 1500, N/A, w/RPO Code CJ2 (Front Automatic Temperature Controls)
• Fits 2005-2006 GMC Sierra 1500 HD, N/A, w/RPO Code CJ2 (Front Automatic Temperature Controls)
• Fits 2003 GMC Sierra 1500 HD, N/A, w/RPO Code CJ2 (Front Automatic Temperature Controls)
• Fits 2003-2006 GMC Sierra 2500 HD, N/A, w/RPO Code CJ2 (Front Automatic Temperature Controls)
• Fits 2003-2006 GMC Sierra 3500, N/A, w/RPO Code CJ2 (Front Automatic Temperature Controls)
• Fits 2003-2004 GMC Sierra 2500, N/A, w/RPO Code CJ2 (Front Automatic Temperature Controls)

Detailed Description

This Dorman HVAC air door actuator kit is built to control the movement of HVAC doors that direct cabin airflow and temperature blend. In vehicles equipped with front automatic temperature controls and RPO code CJ2, the actuator set helps manage transitions between fresh air and recirculation, hot and cold air mixing, and floor-to-defrost airflow routing. It is a direct-fit solution for applications including Chevrolet Silverado 1500, Chevrolet Silverado 2500 HD, GMC Sierra 1500, and GMC Sierra 2500 HD, along with related Cadillac, Hummer, and classic GM truck models. Part number ADAKIT008 is also referenced by 89018365, 89018678, and ADK107 for the same application.

What It Helps Fix

• Incorrect air direction from vents, floor, or defrost outlets
• Temperature blend problems that leave the cabin too hot or too cold
• Recirculation door issues that affect cabin air control
• HVAC clicking, sticking, or inconsistent actuator movement
• Loss of proper automatic climate control response

Installation Notes and Tips

Verify the vehicle’s RPO code CJ2 and match the connector, terminal count, and mounting pattern before installation. ADAKIT008 uses a 5-pin connector, male connector and terminal design, and a 4-hole mounting layout. Confirm the HVAC door function being serviced, since this kit includes actuators for mode, recirculation, and blend door applications. Part number ADAKIT008 should be matched to the exact vehicle configuration listed above.

Quality Assurance

Dorman designs this kit for specified vehicle applications using plastic actuator bodies and application-specific fitment data. The part is cataloged for direct replacement use in supported Chevrolet, GMC, Cadillac, and Hummer models with front automatic temperature controls.