Four Seasons 73366 HVAC Blend Door Actuator - Left Lower Main

Four Seasons 73366 HVAC Air Door Actuator

The Four Seasons 73366 HVAC blend door actuator controls air door movement in the climate system for precise temperature and airflow direction. It is a direct-fit HVAC air door actuator for select Hyundai applications, including Hyundai Equus and Hyundai Genesis models with a left lower main position.

Key Features

• HVAC air door actuator for blend door control
• Cam-style door linkage for proper door movement
• 3 mounting ears for secure installation
• 5-terminal pin electrical connection
• Direct replacement part number 73366

Product Details

Four Seasons Air Door Actuator line components are built for HVAC control applications where accurate door positioning is needed to manage cabin comfort. This 73366 actuator uses a cam linkage design, a 3-ear mounting pattern, and a 5-pin terminal layout to match the specified vehicle configuration. It is used in the left lower main HVAC position on 2011-2016 Hyundai Equus and 2009-2014 Hyundai Genesis models. This part cross-references OE-style numbers such as 971603M000 and A60366 for the same application.

What It Helps Fix

• Inconsistent cabin temperature control
• Airflow stuck on hot or cold
• Improper blend door movement
• HVAC mode or temperature response issues
• Noise or erratic operation from a failing actuator

Installation Notes

Verify the connector style, mounting ear layout, and left lower main position before installation. On Hyundai Genesis and Hyundai Equus HVAC systems, confirm the cam linkage and 5-terminal pin configuration match the original unit. After installation, cycle the climate controls to confirm smooth door movement and proper temperature response.

Quality Assurance

Four Seasons manufactures HVAC components for replacement use in climate control systems. Part number 73366 is specified for the listed Hyundai Equus and Hyundai Genesis applications and should be matched to the original actuator by position and connector details.