Four Seasons 73037 HVAC Recirculation Door Actuator

HVAC Recirculation Door Actuator for Mustang

Restore proper cabin air control with the Four Seasons Air Door Actuator, part number 73037. This HVAC recirculation door actuator is built for 2005-2009 Ford Mustang applications and uses an arm-style door linkage with a 2-terminal pin connector for direct replacement service.

The Four Seasons Air Door Actuator line focuses on HVAC control components that manage air door movement inside the climate system. For Mustang owners diagnosing recirculation or blend-door operation, this actuator helps return the HVAC system to normal response and consistent airflow control.

Key Features

• Brand: Four Seasons
• Brand line: Air Door Actuator
• Part number: 73037
• HVAC recirculation door actuator for climate control service
• Arm-style door linkage
• 3 mounting ears for secure installation
• 2-terminal pin electrical connection
• Direct fit for 2005-2009 Ford Mustang, N/A position

Detailed Description

Four Seasons 73037 is an HVAC air door actuator designed for the recirculation door circuit in the 2005-2009 Ford Mustang. It controls the movement of the air door inside the HVAC housing, helping the system switch between fresh air and recirculated cabin air as commanded by the control head. If your Mustang has inconsistent airflow direction or the recirculation function no longer responds correctly, this actuator is the replacement component to inspect.

This part cross-references Dayco 73037 for the same application. The Four Seasons part number 73037 is also referenced by OE-style numbers including 4R3Z19E616BA and 4R3Z19E616FA in related listings.

Common Issues This Part Can Address

• Recirculation door stuck in one position
• HVAC system not switching between fresh and recirculated air
• Improper cabin airflow control in a Ford Mustang
• Clicking or failed actuator movement inside the dash HVAC case
• Loss of response from the climate control recirculation function

Installation Notes and Tips

Verify the connector style, mounting ear layout, and arm linkage before installation. On 2005-2009 Ford Mustang HVAC systems, access is typically through the climate control housing area, so compare the original actuator to Four Seasons 73037 before removal. After installation, cycle the HVAC controls to confirm smooth door movement and proper recirculation operation.

Quality Assurance

Four Seasons supplies HVAC replacement components for climate control repair applications. This actuator is built to match the specified Ford Mustang fitment and the listed electrical and mounting configuration for service replacement use.