HomeHVAC > Temperature Controls and Related ComponentsFour Seasons 73184 HVAC Mode Door Actuator - Auxiliary
Part #: 73184

Four Seasons 73184 HVAC Mode Door Actuator - Auxiliary

Air Door Actuator, Auxiliary
⚙️ 7 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Air Door Actuator, Auxiliary
🚗Fitment: Cadillac, STS
🔄Easy Returns — Return within 60 days for a full refund
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Reliable HVAC Mode Door Actuator for Cadillac STS

The Four Seasons Air Door Actuator 73184 is designed to restore proper airflow control in your Cadillac STS HVAC system. This HVAC mode door actuator ensures precise movement of the air door linkage, maintaining optimal climate control inside your vehicle.

  • Compatible with Cadillac STS models
  • HVAC mode door actuator style with arm-type door linkage
  • Equipped with 4 mounting ears for secure installation
  • Features 5 terminal pins for reliable electrical connection
  • Part number 73184 for accurate identification and fitment

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 control systems. This product line includes actuators engineered to operate HVAC mode doors with precision, ensuring consistent temperature and ventilation management. The 73184 actuator is part of this line, designed specifically for Cadillac STS applications to maintain system integrity and performance.

Detailed Product Description and Attributes

The Four Seasons 73184 HVAC mode door actuator features an arm-style door linkage that moves the air door smoothly to direct airflow as needed. It includes four mounting ears, providing a stable and secure fit within the HVAC housing. The actuator is equipped with five terminal pins, allowing for a solid electrical connection to the vehicle’s control system. This configuration supports accurate and responsive operation of the HVAC mode door, essential for maintaining the desired cabin environment in your Cadillac STS.

Common HVAC Issues Addressed by This Actuator

  • Inconsistent or incorrect airflow direction inside the cabin
  • Failure of HVAC mode door to move or respond to controls
  • Unusual noises from the HVAC system due to faulty actuator movement
  • Inability to switch between heating, cooling, or defrost modes
  • Intermittent or no response from the HVAC control panel

Installation Notes and Tips

When installing the Four Seasons 73184 actuator, ensure the four mounting ears align properly with the HVAC housing points on the Cadillac STS. Verify the arm linkage is correctly connected to the air door to prevent binding or misalignment. Confirm all five terminal pins are securely connected to the vehicle’s wiring harness to maintain proper electrical function. It is recommended to test actuator operation before reassembling the dashboard components.

Quality Assurance and Warranty Information

Four Seasons manufactures the 73184 HVAC mode door actuator to meet OEM standards for fit and function. This part undergoes quality control testing to ensure reliable performance in Cadillac STS vehicles. Warranty coverage details should be confirmed with the supplier or manufacturer, as they may vary by region and distributor.

BrandFour Seasons
Part Number73184
PositionAir Door Actuator, Auxiliary
Door LinkageArm
Mounting Ear Qty.4
StyleHVAC Air Door Actuator
Terminal Pin Qty.5

This part fits 7 vehicles. Search below:

YearMakeModelPositionNotes
2011CadillacSTSAuxiliaryAir Door Actuator
2010CadillacSTSAuxiliaryAir Door Actuator
2009CadillacSTSAuxiliaryAir Door Actuator
2008CadillacSTSAuxiliaryAir Door Actuator
2007CadillacSTSAuxiliaryAir Door Actuator
2006CadillacSTSAuxiliaryAir Door Actuator
2005CadillacSTSAuxiliaryAir 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:

157302760417665516077318489023397A60184BDAA1183MT18605

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