HomeHVAC > Heater Control Valve and Related ComponentsFour Seasons 73174 HVAC Recirculation Door Actuator
Part #: 73174

Four Seasons 73174 HVAC Recirculation Door Actuator

Air Door Actuator
⚙️ 18 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Air Door Actuator
🚗Fitment: Cadillac, CTS, STS, and SRX
🔄Easy Returns — Return within 60 days for a full refund
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Reliable HVAC Recirculation Door Actuator for Cadillac Vehicles

The Four Seasons Air Door Actuator 73174 is designed to restore proper airflow control in your Cadillac CTS, SRX, and STS models. This HVAC recirculation door actuator ensures precise operation of the air door linkage, maintaining optimal climate control inside your vehicle.

  • Compatible with Cadillac CTS, SRX, and STS models
  • Part number 73174 for accurate identification
  • Features an arm-style door linkage for smooth movement
  • Equipped with 4 mounting ears for secure installation
  • Includes 5 terminal pins for reliable electrical connection

About the Four Seasons Air Door Actuator Product Line

The Air Door Actuator line by Four Seasons focuses on delivering dependable HVAC components that regulate airflow within vehicle climate systems. This product line includes actuators engineered to control various air doors, such as recirculation doors, ensuring consistent performance and compatibility with specific vehicle makes and models. The 73174 actuator is part of this line, tailored to meet the precise requirements of Cadillac HVAC systems.

Product Details and Specifications

The Four Seasons 73174 HVAC recirculation door actuator features an arm-style door linkage that facilitates accurate movement of the air door within the HVAC system. It mounts securely using four mounting ears, providing stability and reducing the risk of vibration or misalignment. The actuator connects electrically through five terminal pins, ensuring a stable and consistent signal for proper operation. This part is engineered specifically for Cadillac CTS, SRX, and STS models, making it a direct replacement for the original equipment actuator.

Common Issues Resolved by This HVAC Recirculation Door Actuator

  • Inconsistent or stuck air recirculation door movement
  • Unresponsive HVAC airflow control in Cadillac CTS, SRX, or STS
  • Unusual noises from the HVAC system due to faulty actuator linkage
  • Failure to switch between fresh air and recirculated air modes
  • Electrical connection problems causing intermittent HVAC operation

Installation Notes and Tips

When installing the Four Seasons 73174 actuator, ensure the four mounting ears align properly with the HVAC housing to avoid misalignment. Verify that the arm-style door linkage moves freely without obstruction. Carefully connect all five terminal pins to the vehicle’s wiring harness to maintain a secure electrical connection. It is recommended to test the actuator operation before reassembling the dashboard components to confirm proper function.

Quality Assurance and Warranty Information

Four Seasons manufactures the 73174 Air Door Actuator to meet or exceed OEM standards for durability and performance. This part undergoes rigorous quality control to ensure reliable operation within Cadillac CTS, SRX, and STS HVAC systems. Warranty coverage details should be confirmed with the supplier or manufacturer, as they may vary by region or distributor.

BrandFour Seasons
Part Number73174
PositionAir Door Actuator
Door LinkageArm
Mounting Ear Qty.4
StyleHVAC Air Door Actuator
Terminal Pin Qty.5

This part fits 18 vehicles. Search below:

YearMakeModelBody TypeLitersCylindersPositionNotes
2015CadillacCTSCoupe6.2LV8N/AAir Door Actuator
2014CadillacCTSCoupe2.0LL4N/AAir Door Actuator
2014CadillacCTSCoupe3.6LV6N/AAir Door Actuator
2014CadillacCTSCoupe6.2LV8N/AAir Door Actuator
2013CadillacCTSN/AAir Door Actuator
2012CadillacCTSN/AAir Door Actuator
2011CadillacCTSN/AAir Door Actuator
2011CadillacSTSN/AAir Door Actuator
2010CadillacCTSN/AAir Door Actuator
2010CadillacSTSN/AAir Door Actuator
2009CadillacSRX3.6LV6N/AAir Door Actuator
2009CadillacSTSN/AAir Door Actuator
2008CadillacSRX3.6LV6N/AAir Door Actuator
2008CadillacSTSN/AAir Door Actuator
2007CadillacSRX3.6LV6N/AAir Door Actuator
2007CadillacSTSN/AAir Door Actuator
2006CadillacSTSN/AAir Door Actuator
2005CadillacSTSN/AAir Door Actuator

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

157302660416265516037317489023395A60174BDAA1173MT18605

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.