Four Seasons 73439 HVAC Recirculation Door Actuator

Four Seasons 73439 Air Door Actuator

The Four Seasons 73439 Air Door Actuator is an HVAC recirculation door actuator built for vehicles with automatic climate control. It uses a 5-pin terminal layout, an arm-style door linkage, and a 4-ear mounting design to control air door movement inside the HVAC case.

Compatible With Lexus RX350, RX400h, RX330, ES330, ES300 and Toyota Camry and Solara applications listed below, this Four Seasons Air Door Actuator is a direct-fit replacement for common recirculation door control issues. The Four Seasons 73439 part number is also referenced by several OE and aftermarket interchange numbers for the same application.

Key Features

• HVAC recirculation door actuator for interior air management
• Arm-style door linkage for air door operation
• 4 mounting ears for secure installation
• 5-terminal pin connector configuration
• Four Seasons Air Door Actuator line for climate control service
• Part number 73439 for application matching and ordering

Detailed Description

This HVAC Air Door Actuator is used to move the recirculation or air door inside the climate control system, helping the HVAC unit direct cabin air as commanded by the control head. The Four Seasons 73439 is specified for select Lexus and Toyota vehicles, including 2002-2006 Toyota Camry, 2004-2008 Toyota Solara with automatic A/C, 2002-2003 Lexus ES300, 2004-2006 Lexus RX330, 2004-2005 Lexus ES330, 2006 Lexus ES330 built to 3/13/06, 2006-2008 Lexus RX400h, and 2007-2009 Lexus RX350.

This part cross-references OE and aftermarket numbers such as 8710606110 and MT18626 for the same application. Use the Four Seasons 73439 when replacing a failed recirculation door actuator on Lexus RX350, Lexus RX400h, or Toyota Camry HVAC systems that match the listed fitment.

What It Helps Fix

• Recirculation door stuck in one position
• HVAC airflow not switching correctly between fresh and recirculated air
• Clicking or repeated actuator movement from a worn internal gear set
• Loss of proper cabin air direction control
• Climate control response problems tied to the air door actuator

Installation Notes and Tips

Verify the vehicle’s year, make, model, and automatic A/C equipment before ordering. This part is listed for the positions shown as N/A in the fitment data, so match the original actuator location and connector style before installation. Confirm the 5-pin terminal layout, arm linkage, and 4-ear mounting pattern against the original unit to ensure proper fitment.

Quality Assurance

Four Seasons supplies HVAC service parts for climate control repair applications, and this actuator is cataloged for direct application matching across the listed Lexus and Toyota vehicles. Part number 73439 is supported by OE and aftermarket interchange references for fitment verification.

Compatible Vehicles

• Fits 2007-2009 Lexus RX350, N/A
• Fits 2006-2008 Lexus RX400h, N/A
• Fits 2004-2008 Toyota Solara, N/A, only compatible with automatic A/C equipped vehicles
• Fits 2006 Lexus ES330, N/A, to 3/13/06
• Fits 2004-2006 Lexus RX330, N/A
• Fits 2002-2006 Toyota Camry, N/A
• Fits 2004-2005 Lexus ES330, N/A
• Fits 2002-2003 Lexus ES300, N/A