Four Seasons 73450 HVAC Mode Door Actuator - Right

HVAC Mode Door Actuator for Acura and Honda

The Four Seasons 73450 HVAC mode door actuator restores control of air distribution inside the cabin. It is built as an HVAC air door actuator with a male door linkage, 4 mounting ears, and a 5-pin terminal layout for direct replacement service on select Acura and Honda applications.

Four Seasons Air Door Actuator parts are used to help maintain precise airflow control through the HVAC system. This unit is a practical replacement for vehicles such as the Acura ILX, Acura RDX, Honda Accord, Honda CR-V, and Honda Civic when the mode door no longer responds correctly.

Key Features

• Four Seasons part number 73450
• HVAC mode door actuator / HVAC air door actuator style
• Male door linkage for the actuator connection
• 4 mounting ears for secure installation
• 5 terminal pins for the electrical interface
• Cross-references Four Seasons 73450 for the same application
• Cross-references 79140TR0A01 for the same application

Detailed Description

This HVAC mode door actuator controls the movement of the air door that directs airflow to the dash, floor, or defrost outlets. When the original actuator wears out or loses calibration, the system can stop changing modes correctly. The Four Seasons 73450 is a direct-fit replacement for select Acura ILX and Acura RDX models, plus Honda Accord, Honda CR-V, and Honda Civic applications listed below.

Compatible With 2020-2022 Acura ILX, Right; 2013-2019 Acura ILX, Right; 2013-2018 Acura RDX, N/A; 2017 Honda Accord, N/A; 2013-2016 Honda Accord, N/A; 2012-2016 Honda CR-V, N/A; and 2012-2015 Honda Civic, N/A. Use this part number 73450 when matching the original actuator by connector, linkage style, and mounting configuration.

What It Helps Fix

• Airflow stuck on one vent position
• No change between dash, floor, and defrost settings
• Clicking or repeated movement from a failing actuator
• HVAC mode door response problems after actuator wear
• Loss of proper cabin air direction in Acura and Honda vehicles

Installation Notes and Tips

Verify the original actuator’s connector, linkage style, mounting ear layout, and terminal count before installation. On the listed Acura ILX, Acura RDX, Honda Accord, Honda CR-V, and Honda Civic applications, confirm the replacement matches the vehicle’s HVAC position and connector orientation. After installation, cycle the HVAC controls to confirm the mode door moves through all positions correctly.

Quality Assurance

Four Seasons is a recognized aftermarket brand in HVAC service parts, and this actuator is built to match the specified application details for reliable replacement service.