Four Seasons 73165 HVAC Recirculation Door Actuator

Four Seasons 73165 Air Door Actuator Overview

The Four Seasons 73165 is an HVAC recirculation door actuator built for vehicles that use a 5-terminal, male door linkage design with a 4-ear mounting pattern. It is a direct-fit air door actuator for select Chevrolet Camaro, Cadillac ATS, Cadillac CTS, Buick Lucerne, and Cadillac DTS applications.

Four Seasons Air Door Actuator components are used to restore proper HVAC door movement in systems that control recirculation and airflow routing. This part number, 73165, is listed for multiple GM platforms where precise door positioning is required for cabin climate control.

Key Features

• HVAC recirculation door actuator for air distribution control
• Male door linkage design
• 4 mounting ears for secure installation
• 5-terminal pin electrical connection
• Four Seasons part number 73165
• Cross-reference part number: 604152

Vehicle Fitment

• Fits 2022-2024 Chevrolet Camaro, N/A.
• Fits 2016-2021 Chevrolet Camaro, N/A; Air Door Actuator.
• Fits 2013-2019 Cadillac ATS, N/A; fitment note: without Start/Stop feature; Air Door Actuator.
• Fits 2019 Cadillac CTS, N/A; w/o Stop/Start Feature; Air Door Actuator.
• Fits 2014-2018 Cadillac CTS, N/A; Air Door Actuator.
• Fits 2006-2011 Buick Lucerne, N/A; vehicle is compatible with Dual Zone Climate Control for HVAC Recirculation Door Actuator; Air Door Actuator.
• Fits 2006-2011 Cadillac DTS, N/A; Air Door Actuator.

What This Part Helps Address

• Recirculation door not responding to HVAC commands
• Improper airflow routing inside the cabin
• Loss of recirculation function in the climate control system
• Temperature control issues caused by a stuck air door
• HVAC actuator noise or inconsistent door movement

Installation Notes

Verify the connector style, terminal count, linkage type, and mounting ear layout before installation. Confirm the vehicle’s HVAC configuration and note-specific requirements, including Start/Stop and Dual Zone Climate Control details where listed. For best results, compare the original actuator to Four Seasons 73165 before replacement.

Quality Assurance

Four Seasons supplies HVAC replacement components for OE-style service applications, and this actuator is cataloged for direct vehicle-specific fitment on select GM models. Part number 73165 is supported by published interchange references for application matching.