Dorman 604-171 HVAC Blend Door Actuator - Main
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Dorman

Dorman 604-171 HVAC Blend Door Actuator - Main

Brand Dorman 604-171
Position Main
Material Plastic
Package Contents Actuator
Switch Activation Type Rotary
Fits Cadillac · 3 vehicles

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

Rotary activation. Smooth, reliable control for HVAC blend door operation.

Plastic construction. Lightweight actuator housing for dependable everyday use.

Cross-references Standard Ignition ADR4227, 19130240 and ADA275 for the same application. See all 5.

$90.55Free shipping
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Free returns within 60 days if it doesn't fit when fitment is verified.
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Dorman 604-171 HVAC Blend Door Actuator

This Dorman HVAC blend door actuator is built for precise heater and air distribution control in select Cadillac SRX applications. It uses a rotary activation design and a plastic housing to match the original actuator’s function on the vehicle.

Key Features

  • Rotary switch activation for blend door movement
  • Plastic construction for HVAC system use
  • Direct replacement for the original actuator on listed applications
  • Fits 2007-2009 Cadillac SRX, Main
  • Part number 604-171 for easy identification

Detailed Description

The Dorman 604-171 HVAC blend door actuator is engineered to match the quality and performance of the original heater blend door actuator on specific vehicles. In the Cadillac SRX, this component helps control the HVAC blend door position so the system can direct air for temperature and mode selection. If you are replacing a failed actuator on a 2007, 2008, or 2009 Cadillac SRX, this part number 604-171 is the correct OE-style service part for the main HVAC position. This part cross-references Standard Ignition ADR4227 for the same application.

What It Helps Resolve

  • Incorrect cabin temperature control
  • Airflow stuck on one vent mode
  • HVAC doors not responding to control input
  • Clicking or repeated movement from a worn actuator
  • Loss of proper blend door positioning in the dash HVAC system

Installation Notes and Tips

Verify the vehicle year, model, and HVAC position before ordering. On 2007-2009 Cadillac SRX models, this actuator installs in the main HVAC blend door location. Confirm the electrical connector and mounting style match the original unit before installation. After replacement, cycle the HVAC controls to allow the system to relearn door positions if required by the vehicle.

Quality Assurance

Dorman manufactures this actuator as a precision-engineered replacement for the original blend door actuator used on the listed Cadillac SRX applications. The design focuses on restoring factory-style HVAC operation with the correct rotary actuation and fit for the specified vehicle years. Part number 604-171 is also referenced by interchange numbers 19130240, ADA275, ADS4227, and APBDA0099.

Related reading

This part fits 3 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2009CadillacSRXMainHVAC Blend Door Actuator for mode selection in box packaging.
2008CadillacSRXMainHVAC Blend Door Actuator for mode selection in box packaging.
2007CadillacSRXMainHVAC Blend Door Actuator for mode selection in box packaging.
Directly replaces or cross-references 5 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Standard Ignition — ADR422719130240ADA275ADS4227APBDA0099