Four Seasons 73398 HVAC Blend Door Actuator - Left Upper Main

Four Seasons 73398 HVAC Air Door Actuator

Four Seasons 73398 is an HVAC blend door actuator built for precise air door movement in the climate control system. It uses a 5-terminal pin layout, a female door linkage, and a 4-ear mounting style for a direct-fit replacement on select Hyundai applications.

Compatible with 2011-2016 Hyundai Equus and 2009-2014 Hyundai Genesis, this HVAC air door actuator helps restore proper temperature and airflow control at the left upper main position. Four Seasons 73398 is a practical replacement when the original actuator no longer responds correctly to HVAC commands.

Key Features

• HVAC blend door actuator for air distribution and temperature control
• Female door linkage for the specified application
• 4 mounting ears for secure installation
• 5 terminal pins for the electrical connection
• Direct replacement for select Hyundai Equus and Hyundai Genesis models
• Part number 73398 for easy identification and ordering

Detailed Description

Four Seasons Air Door Actuator line components are used in vehicle HVAC systems to move internal doors that regulate cabin air routing. This unit is specified as an HVAC air door actuator and is listed for the left upper main position on select Hyundai vehicles. If your Hyundai Genesis or Hyundai Equus has inconsistent vent direction, incorrect cabin temperature, or a door that no longer responds to control input, this actuator addresses the mechanical and electrical interface at the blend door location. This part cross-references Hyundai OE-style numbers 971593M000 and A60398 for the same application.

Common Issues This Part Can Help Resolve

• Airflow stuck on one vent setting
• Temperature changes that do not match the control setting
• Clicking or repeated movement from the HVAC dash area
• Blend door response failure at the left upper main position
• Loss of proper cabin air distribution in the HVAC system

Installation Notes and Tips

Verify the connector style, terminal count, mounting ear layout, and door linkage before installation. Access is typically through the HVAC housing, so confirm the left upper main actuator location on the vehicle before removal. After installation, cycle the ignition and HVAC controls to allow the system to relearn actuator position if required by the vehicle.

Quality Assurance

Four Seasons manufactures HVAC replacement components for service applications, and this actuator is cataloged to match the listed Hyundai fitments and connection details. Confirm part number 73398 against the original unit and vehicle application before purchase.