Dorman 604-161 HVAC Blend Door Actuator - Right Main
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Dorman

Dorman 604-161 HVAC Blend Door Actuator - Right Main

Brand Dorman 604-161
Position Right Main
Material Plastic
Package Contents Actuator
Switch Activation Type Rotary
Fits Cadillac · 17 vehicles

OE-style replacement. Precision-engineered to match original quality and performance.

Rotary design. Provides smooth, reliable control of the blend door.

Plastic construction. Lightweight actuator built for HVAC use.

Cross-references Standard Ignition ADR4221, 89023390 and ADA266 for the same application. See all 6.

$44.01Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
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Step 2 — Quantity
Order total $44.01
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.
Not what you need? See all HVAC Blend Door Actuator options

HVAC Blend Door Actuator for Cadillac CTS and STS

The Dorman 604-161 HVAC blend door actuator is a rotary, plastic replacement part engineered to match the function and performance of the original actuator on select Cadillac models. It is used for temperature control in the HVAC box on the right main position.

  • Rotary switch activation type for HVAC blend door control
  • Plastic housing construction
  • Direct replacement for the original blend door actuator on listed applications
  • Fits Cadillac CTS and Cadillac STS temperature control HVAC systems
  • Part number 604-161 for application matching and catalog lookup

Detailed Product Information

This HVAC heater blend door actuator is built for specific Cadillac CTS and Cadillac STS vehicles where the temperature control blend door needs precise movement inside the HVAC case. Dorman 604-161 is designed to restore proper air temperature blending by controlling the door position through a rotary activation design. It is a practical replacement for the right main HVAC actuator on 2008-2015 Cadillac CTS and 2005-2011 Cadillac STS.

This part cross-references Standard Ignition ADR4221 for the same application. The Dorman 604-161 part number is also commonly used when searching for a replacement HVAC blend door actuator for Cadillac CTS right main temperature control service.

Common Problems This Part Can Address

  • Incorrect cabin air temperature from the vents
  • Loss of hot or cold air blend control
  • HVAC door movement issues in the right main position
  • Temperature changes that do not respond correctly to control inputs
  • Actuator noise or inconsistent blend door operation

Installation Notes and Tips

Verify the vehicle year, make, model, and right main position before ordering. This actuator is listed for 2008-2015 Cadillac CTS and 2005-2011 Cadillac STS temperature control HVAC applications. Confirm the original part style and connector match the vehicle’s existing blend door actuator before installation.

Quality Assurance

Dorman states that this HVAC heater blend door actuator is precision-engineered to match the quality and performance of the original part on the listed vehicles. Use the confirmed fitment data for application matching when selecting part number 604-161.

Related reading

This part fits 17 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelBody TypeLitersCylindersPositionNotes
2015CadillacCTSCoupe——Right MainTemperature control HVAC blend door actuator for box packaging.
2014CadillacCTSWagon——Right MainTemperature control HVAC blend door actuator for box packaging.
2014CadillacCTSCoupe——Right MainTemperature control HVAC blend door actuator for box packaging.
2014CadillacCTSSedan6.2LV8Right MainTemperature control HVAC blend door actuator for box packaging.
2013CadillacCTS———Right MainTemperature control HVAC blend door actuator for box packaging.
2012CadillacCTS———Right MainTemperature control HVAC blend door actuator for box packaging.
2011CadillacCTS———Right MainTemperature control HVAC blend door actuator for box packaging.
2011CadillacSTS———Right MainTemperature control HVAC blend door actuator for box packaging.
2010CadillacCTS———Right MainTemperature control HVAC blend door actuator for box packaging.
2010CadillacSTS———Right MainTemperature control HVAC blend door actuator for box packaging.
2009CadillacCTS———Right MainTemperature control HVAC blend door actuator for box packaging.
2009CadillacSTS———Right MainTemperature control HVAC blend door actuator for box packaging.
2008CadillacCTS———Right MainTemperature control HVAC blend door actuator for box packaging.
2008CadillacSTS———Right MainTemperature control HVAC blend door actuator for box packaging.
2007CadillacSTS———Right MainTemperature control HVAC blend door actuator for box packaging.
2006CadillacSTS———Right MainTemperature control HVAC blend door actuator for box packaging.
2005CadillacSTS———Right MainTemperature control HVAC blend door actuator for box packaging.
Directly replaces or cross-references 6 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Standard Ignition — ADR422189023390ADA266ADS4221APBDA0095SK604161