Four Seasons 73519 HVAC Recirculation Door Actuator

Four Seasons 73519 Air Door Actuator

The Four Seasons 73519 Air Door Actuator is an HVAC recirculation door actuator built for precise control of air door movement in select Lexus and Toyota applications. It uses a 5-terminal pin layout, a female door linkage, and a 4-ear mounting style for direct-fit service on listed vehicles.

Four Seasons Air Door Actuator products are part of the brand’s HVAC switch, solenoid, and actuator line, focused on restoring proper cabin airflow control. This unit is identified by part number 73519 and cross-references A60519 for the same application.

Key Features

• HVAC air door actuator for recirculation and mode-door control applications
• Female door linkage for the specified OE-style connection
• 4 mounting ears for secure installation on listed HVAC housings
• 5-terminal pin configuration
• Direct replacement part number 73519
• Fits select Lexus GX460, LX570, LS460, LS600h, and Toyota Land Cruiser applications

Detailed Description

This Four Seasons 73519 actuator is used in HVAC systems where the recirculation or air door must move accurately to direct cabin airflow. It is listed for 2022-2023 Lexus GX460 Auxiliary applications, 2013 Lexus LX570 and 2013 Toyota Land Cruiser builds through 1/2013, plus select 2007-2012 Lexus LS460 and LS600h, 2008-2012 Lexus LX570, and 2008-2011 Toyota Land Cruiser models. In some listings, it is also identified as a main or defrost air door actuator depending on the vehicle configuration.

This part cross-references A60519 for the same application. If you are searching for a Lexus LX570 air door actuator, Toyota Land Cruiser HVAC actuator, or a Lexus LS460 recirculation door actuator, part number 73519 is the reference to verify against your original unit.

What It Helps Address

• Stuck or unresponsive HVAC recirculation door operation
• Incorrect airflow routing between fresh and recirculated air
• Defrost or mode-door movement concerns on listed applications
• HVAC blend or air distribution issues caused by actuator failure
• Clicking or inconsistent door movement from a worn actuator

Installation Notes and Tips

Verify the original actuator’s connector style, mounting ear count, and linkage type before ordering. Confirm vehicle year breakpoints carefully, especially 2013 Lexus LX570 and 2013 Toyota Land Cruiser applications noted through 1/2013, and 2008 Lexus LX570 applications noted from 11/07. Match the replacement to the exact HVAC position shown on the vehicle, since this part is listed for auxiliary, main, and defrost-related applications depending on model.

Quality Assurance

Four Seasons supplies HVAC replacement components for service applications, and this actuator is cataloged under the Air Door Actuator product line for direct identification by part number 73519.