Dorman 604-176 HVAC Blend Door Actuator - Floor Console

Dorman HVAC Blend Door Actuator 604-176

This Dorman HVAC blend door actuator is built for specific vehicle applications and is engineered to match the fit and function of the original unit. It uses a rotary switch activation design and a plastic housing for direct replacement service on the HVAC system.

Key Features

• HVAC blend door actuator for temperature and air distribution control
• Rotary switch activation type for blend door movement
• Plastic construction for OE-style replacement fitment
• Matches original performance expectations for selected applications
• Part number 604-176 for easy identification

Detailed Description

Dorman 604-176 is a heater blend door actuator engineered for specific Cadillac STS applications. It is used in the HVAC system to move the blend door and support mode selection and air management inside the cabin. For buyers searching for a Cadillac STS HVAC blend door actuator or a Dorman 604-176 replacement, this part provides a direct-fit service solution for the listed floor console position. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Compatible With 2005-2011 Cadillac STS, Floor Console. The Dorman 604-176 is a practical replacement when the original actuator no longer responds correctly or does not move the HVAC door as commanded. It is also a relevant search match for 2005-2011 Cadillac STS blend door actuator replacement and Cadillac STS HVAC mode selection repair.

Common Issues This Part May Address

• Incorrect cabin air temperature control
• HVAC air not changing between vents, floor, or defrost settings
• Clicking or repeated movement from the dash HVAC actuator area
• Blend door not responding to control inputs
• Loss of proper mode selection in the HVAC system

Installation Notes and Tips

Verify the vehicle year, make, model, and floor console application before ordering. Compare the original actuator connector, mounting points, and operating style to confirm the replacement matches the existing unit. After installation, cycle the HVAC controls to confirm smooth blend door movement and proper mode selection.

Quality Assurance

Dorman engineers this HVAC heater blend door actuator to match the quality and performance of the original part on the listed vehicles. Part number 604-176 is built as an OE-style replacement for specific Cadillac STS applications.