Dorman 604-709 HVAC Blend Door Actuator - Main

Dorman 604-709 HVAC Blend Door Actuator

Dorman 604-709 is an HVAC blend door actuator engineered to match the fit and function of the original actuator on select Buick and Chevrolet vehicles. It is built for heater and air inlet door control, with a rotary activation design and a 6-pin male terminal layout.

Key Features

• Rotary switch activation for HVAC door movement
• 6-pin male terminal connection
• Plastic housing for OE-style fitment
• Direct replacement for select blend door and air inlet applications
• Cross-reference: GM 13332583

Detailed Description

This HVAC heater blend door actuator is precision-engineered to match the quality and performance of the original blend door actuator on specific vehicle years, makes and models. Dorman 604-709 is used in HVAC systems that control air inlet, outside air, inside air, and mode selection functions, depending on the vehicle application. It is a direct-fit replacement for select Buick Regal, Buick Verano, Buick LaCrosse, Chevrolet Cruze, Chevrolet Cruze Limited, Malibu, and Malibu Limited models. For buyers searching for a Buick Regal HVAC blend door actuator or a Chevrolet Cruze air inlet actuator, this part number provides a fitment-specific solution.

What It Helps Address

• Incorrect air direction from the dash vents
• HVAC doors that stop responding to temperature or mode commands
• Stuck outside-air or inside-air selection
• Clicking or inconsistent actuator movement behind the dash
• Loss of proper cabin airflow control in select Buick and Chevrolet models

Installation Notes and Tips

Verify the connector style, terminal count, and vehicle-specific HVAC configuration before installation. This part uses a 6-pin male terminal arrangement and rotary activation, so matching the original actuator design is important for proper operation. Confirm the exact application by year, make, model, and HVAC function, especially on vehicles with air inlet, mode, or automatic temperature control systems.

Quality Assurance

Dorman designs this replacement actuator to align with original equipment performance expectations for the listed applications. It is intended as an OE-style service part for select Buick and Chevrolet HVAC systems.