Four Seasons 73321 HVAC Mode Door Actuator - Auxiliary

HVAC Air Door Actuator for Dodge Durango

Restore proper climate control response with the Four Seasons 73321 HVAC mode door actuator. This air door actuator is built for auxiliary HVAC applications and uses a 5-terminal pin layout with a male door linkage and 3 mounting ears for a direct-fit style replacement.

Compatible with 2014-2024 Dodge Durango auxiliary HVAC applications, this Four Seasons Air Door Actuator line part helps maintain accurate airflow direction inside the cabin. If your Dodge Durango is stuck on one vent setting or the air distribution changes inconsistently, the 73321 is the type of replacement used to correct that condition.

Key Features

• Four Seasons Air Door Actuator line replacement
• Part number 73321
• HVAC mode door actuator for auxiliary air door control
• Male door linkage for the specified application
• 3 mounting ears for secure installation
• 5-terminal pin electrical connection
• Direct application coverage for Dodge Durango auxiliary HVAC systems

Detailed Description

The Four Seasons 73321 is an HVAC air door actuator used to control the position of the mode door in the auxiliary climate system. In the Dodge Durango, this component helps route air to the selected outlets so the system can respond correctly when switching between defrost, panel, and floor settings. The Four Seasons 73321 is listed for 2014-2018 Dodge Durango auxiliary applications and 2019-2021 Dodge Durango auxiliary air door actuator applications, with 2022-2024 Dodge Durango auxiliary coverage also confirmed.

This part cross-references Global Parts Distributors LLC 1712473 for the same application.

Common Problems This Part Can Address

• Airflow stuck at one vent position
• Loss of response when changing HVAC mode settings
• Inconsistent air distribution between dash, floor, and defrost outlets
• Clicking or binding from the auxiliary HVAC actuator area
• Climate control output that no longer matches the selected setting

Installation Notes and Tips

• Verify the connector, 5-terminal pin layout, and male linkage before installation.
• Confirm the vehicle uses the auxiliary HVAC position listed for your model year.
• Inspect the mode door and surrounding linkage for binding before replacing the actuator.
• After installation, cycle the HVAC controls to allow the system to relearn actuator positions if required by the vehicle.

Quality Assurance

Four Seasons is a recognized HVAC parts brand, and the 73321 is cataloged as an air door actuator for the specified Dodge Durango applications. Use the listed fitment details to confirm the correct auxiliary HVAC replacement for your vehicle.