Four Seasons 73403 HVAC Mode Door Actuator

HVAC Air Door Actuator for Hyundai and Kia

Four Seasons 73403 is an HVAC mode door actuator built for precise air door movement in select Hyundai and Kia applications. It uses a 5-terminal pin layout, a 3-ear mounting design, and an arm-style door linkage to control airflow routing inside the climate system.

Compatible With 2005-2009 Hyundai Tucson and select 2005-2009 Kia Sportage models, this Four Seasons Air Door Actuator supports accurate cabin air direction for vehicles with the listed climate control configurations. Four Seasons 73403 is a direct-fit HVAC mode door actuator for targeted replacement needs.

Key Features

• Brand: Four Seasons Air Door Actuator line
• Part number: 73403
• HVAC mode door actuator for air distribution control
• Arm-style door linkage
• 3 mounting ears for secure installation
• 5-terminal pin electrical connection
• Cross-reference part numbers include 604323 and 971542E200

Detailed Description

Four Seasons 73403 is an HVAC air door actuator used to move the mode door inside the heating and air conditioning system. By positioning the door correctly, it helps direct airflow to the dash vents, floor outlets, or defrost outlets as required by the vehicle’s climate control system. This part is listed for 2005-2009 Hyundai Tucson, plus 2005-2009 Kia Sportage applications with the specified rear climate control and compressor-code notes. The Four Seasons Air Door Actuator line focuses on replacement components for HVAC control functions, and this unit follows the listed OE-style fitment and connector details.

This part cross-references 604323 and 971542E200 for the same application.

Common HVAC Issues It Can Address

• Airflow stuck on one vent setting
• No response when changing mode selections
• Incorrect air direction between dash, floor, and defrost outlets
• Clicking or inconsistent movement from the HVAC door area
• Loss of proper cabin airflow control in the climate system

Installation Notes and Tips

Verify the connector style, mounting ear layout, and vehicle-specific notes before installation. This actuator is listed with an arm linkage and 5-pin terminal configuration, so matching the original part details is important for proper HVAC operation. Confirm the exact vehicle application for your Hyundai Tucson or Kia Sportage before replacing the existing unit.

Quality Assurance

Four Seasons supplies HVAC replacement components for vehicle climate control systems, and this actuator is cataloged to the specified OE-style application details for fitment accuracy.