Four Seasons 73499 HVAC Blend Door Actuator

Four Seasons 73499 Air Door Actuator

Four Seasons 73499 is an HVAC blend door actuator built for precise air door movement in select Acura and Honda applications. This Air Door Actuator uses a cam-style door linkage, a 7-pin terminal layout, and a 4-ear mounting design for direct replacement service in the HVAC case.

Compatible With 2007-2012 Acura RDX, left, and select 2006-2011 Honda Civic and 2007-2011 Honda CR-V HVAC air door actuator applications. The Four Seasons Air Door Actuator line is focused on replacement parts for climate control doors that direct cabin airflow and temperature blend operation.

Key Features

• Four Seasons part number 73499
• HVAC blend door actuator / air door actuator design
• Cam door linkage for HVAC door movement
• 4 mounting ears for secure installation
• 7 terminal pins for electrical connection
• Fits 2007-2012 Acura RDX, left
• Fits 2006-2011 Honda Civic, HVAC air door actuator applications
• Fits 2007-2011 Honda CR-V, HVAC air door actuator applications

Detailed Description

This Four Seasons 73499 actuator is used to control HVAC blend door position inside the climate system, helping route air through the correct temperature and distribution paths. It is a direct-fit replacement for vehicles listed in the fitment data, including Acura RDX, Honda Civic, and Honda CR-V applications. This part cross-references Global Parts Distributors LLC 1712731 for the same application.

For buyers searching for a 2007-2012 Acura RDX left blend door actuator or a 2006-2011 Honda Civic HVAC air door actuator, this part number provides a fitment-specific replacement option. The 73499 designation is also useful when matching an existing actuator by part number during HVAC repair or diagnosis.

What It Helps Fix

• Temperature blend door movement that no longer responds correctly
• Airflow stuck in one vent mode or distribution setting
• HVAC clicking or repeated actuator cycling behind the dash
• Inconsistent cabin temperature control
• Loss of proper left-side HVAC door operation on listed applications

Installation Notes and Tips

Verify the original actuator’s connector style, mounting ear layout, and door linkage before installation. Confirm vehicle year, model, and position against the fitment list, especially for 2006-2011 Honda Civic and 2007-2011 Honda CR-V HVAC service. After installation, cycle the ignition and HVAC controls so the system can relearn door positions if required by the vehicle.

Quality Assurance

Four Seasons HVAC replacement parts are built for application-specific service in climate control systems. Use the confirmed fitment data and part number 73499 to match the correct actuator for the listed Acura and Honda vehicles.