HomeHVAC > Temperature Controls and Related ComponentsFour Seasons 73172 HVAC Blend Door Actuator - Left
Part #: 73172

Four Seasons 73172 HVAC Blend Door Actuator - Left

Air Door Actuator, Left
⚙️ 15 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Air Door Actuator, Left
🚗Fitment: Cadillac, CTS
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Reliable HVAC Blend Door Actuator for Cadillac CTS

The Four Seasons Air Door Actuator 73172 is designed to restore precise climate control in your Cadillac CTS. This HVAC blend door actuator ensures smooth operation of your vehicle's air distribution system, maintaining comfort and efficiency.

  • Door linkage type: Arm for secure and accurate movement
  • Mounting ear quantity: 4 for stable installation
  • Style: HVAC air door actuator tailored for blend door control
  • Terminal pin quantity: 5 for reliable electrical connections
  • Compatible with Cadillac CTS models

About the Four Seasons Air Door Actuator Product Line

The Air Door Actuator line by Four Seasons focuses on delivering precise control components for HVAC systems. This product line includes actuators engineered to regulate airflow within vehicle heating and cooling systems, ensuring consistent temperature management. The 73172 blend door actuator is part of this line, designed specifically to meet the operational demands of Cadillac CTS HVAC systems.

Detailed Product Description

The Four Seasons 73172 HVAC blend door actuator features an arm-type door linkage that provides accurate positioning of the blend door within the HVAC system. With four mounting ears, this actuator offers a secure fit to the vehicle’s HVAC housing, minimizing vibration and ensuring long-term durability. The actuator’s five terminal pins facilitate stable electrical connections, supporting reliable communication with the vehicle’s climate control module. This part is engineered to replace the original blend door actuator in Cadillac CTS models, restoring proper airflow direction and temperature regulation.

Common HVAC Issues Addressed by This Actuator

  • Inconsistent cabin temperature due to blend door malfunction
  • Unresponsive or stuck HVAC air distribution controls
  • Unusual noises from the HVAC system during operation
  • Failure to switch between heating and cooling modes effectively
  • Erratic airflow direction inside the vehicle cabin

Installation Notes and Tips

  • Ensure vehicle ignition is off before beginning installation
  • Disconnect the battery to prevent electrical shorts
  • Remove the HVAC housing cover carefully to access the blend door actuator
  • Note the orientation of the original actuator and linkage arm before removal
  • Secure the new actuator using all four mounting ears for proper fitment
  • Reconnect the five terminal pins firmly to avoid loose connections
  • Test the HVAC system operation before reassembling the dashboard components

Quality Assurance and Warranty

Four Seasons manufactures the 73172 blend door actuator to meet OEM specifications for fit and function. This part undergoes quality control testing to ensure reliable performance in Cadillac CTS vehicles. Warranty coverage details should be confirmed with the product supplier or manufacturer documentation.

BrandFour Seasons
Part Number73172
PositionAir Door Actuator, Left
Door LinkageArm
Mounting Ear Qty.4
StyleHVAC Air Door Actuator
Terminal Pin Qty.5

This part fits 15 vehicles. Search below:

YearMakeModelBody TypeLitersCylindersPositionNotes
2015CadillacCTSCoupe6.2LV8LeftAir Door Actuator
2014CadillacCTSWagon2.0LL4LeftAir Door Actuator
2014CadillacCTSCoupe2.0LL4LeftAir Door Actuator
2014CadillacCTSWagon3.0LV6LeftAir Door Actuator
2014CadillacCTSWagon3.6LV6LeftAir Door Actuator
2014CadillacCTSCoupe3.6LV6LeftAir Door Actuator
2014CadillacCTSSedan6.2LV8LeftAir Door Actuator
2014CadillacCTSWagon6.2LV8LeftAir Door Actuator
2014CadillacCTSCoupe6.2LV8LeftAir Door Actuator
2013CadillacCTSLeftAir Door Actuator
2012CadillacCTSLeftAir Door Actuator
2011CadillacCTSLeftAir Door Actuator
2010CadillacCTSLeftAir Door Actuator
2009CadillacCTSLeftAir Door Actuator
2008CadillacCTSLeftAir 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:

1573848171232525865637604160655158773172A60172BDAC1171MT18603

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