Four Seasons 73711 HVAC Mode Door Actuator

Four Seasons 73711 HVAC Mode Door Actuator

The Four Seasons 73711 HVAC mode door actuator restores proper air distribution in the cabin by controlling the HVAC air door position. Built with a cam-style door linkage, 3 mounting ears, and a 5-pin terminal layout, it is a direct-fit replacement for select Subaru Legacy and Subaru Outback models without automatic temperature control.

Key Features

• HVAC air door actuator for mode door control
• Cam-style door linkage for the specified application
• 3 mounting ears for secure installation
• 5-terminal pin configuration
• Engineered and tested for dependable operation
• Four Seasons part number 73711

Detailed Description

Four Seasons 73711 is an HVAC mode door actuator built for 2010-2014 Subaru Legacy and 2010-2014 Subaru Outback models without ATC (Automatic Temperature Control). It regulates the blend of airflow through the dash vents, helping the HVAC system direct air where the driver selects. This part cross-references 72131AJ09A for the same application. Four Seasons backs this actuator with more than 50 years of mobile A/C experience, and the component is engineered and tested to deliver consistent operation in the HVAC system.

Common Issues This Part Can Address

• Airflow stuck on defrost, panel, or floor vents
• Inconsistent vent direction when changing HVAC settings
• Clicking or binding from a worn mode door actuator
• Loss of proper cabin air distribution control
• HVAC mode changes that do not respond correctly

Installation Notes and Tips

Verify the vehicle is a 2010-2014 Subaru Legacy or 2010-2014 Subaru Outback without ATC before ordering. Match the cam linkage, 3-ear mounting pattern, and 5-pin connector to the original unit. After installation, cycle the HVAC controls to confirm the mode door moves through each setting and the airflow changes correctly.

Quality Assurance

Four Seasons engineers and tests this HVAC actuator for reliable service, drawing on decades of mobile air conditioning experience. The brand positions this part as a repair-focused replacement for restoring proper HVAC mode control in Subaru Legacy and Subaru Outback applications.