Four Seasons 73737 HVAC Air Door Actuator

The Four Seasons 73737 is a replacement HVAC air door actuator designed to restore proper climate control function to your vehicle's heating and air conditioning system. Air door actuators control the blend doors and mode doors inside the HVAC box, directing airflow between heating, cooling, defrost, and ventilation modes.

Key Features:

• Direct-fit replacement for OEM actuator
• Controls blend door or mode door position within the HVAC plenum
• Restores proper airflow direction and temperature blending
• Engineered to meet or exceed original equipment specifications
• Plug-and-play installation — matches original connector and mounting configuration

Four Seasons is a leading manufacturer of thermal management and HVAC components for the automotive aftermarket, offering broad vehicle coverage and reliable performance. The 73737 actuator is built to address common failure symptoms such as stuck temperature settings, incorrect airflow direction, or clicking/tapping noises from behind the dashboard.