Cadillac CTS CTS-V SRX Air Inlet Door Actuator Dorman 604-158 - 1AZMX00218

This replacement actuator is just what you need to get your vehicle's HVAC system in working order again.


  • HVAC Recirculation Mode Door Actuator
  • Responsible for switching between recirculated and fresh air
  • Replaces dealer part number: 25740409
  • D Shaped Shaft
  • Direct fit replacement
  • Built to strict quality control standards

This actuator makes a great replacement and has a good cost savings over a dealer unit.

Returns Note:

Our electrical and electronic parts are subject to strict quality control testing.  Once the item has been installed or plugged in, it is no longer eligible for a refund.  The item may be eligible for replacement, only if it is found to have a manufacturing defect. Before purchasing, please ensure proper diagnosis of the failed original part is performed.

Lifetime Warranty

This item is backed by a Limited Lifetime Warranty. In the event this item should fail due to manufacturing defects during intended use, we will exchange the part free of charge (excludes shipping charges) for the original purchaser.

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Vehicle Fit

Year Make Model Description
2003-2007Cadillac CTS Cadillac CTS Air Inlet Door Actuator Dorman 604-158
2004-2007Cadillac CTS-V Cadillac CTS-V Air Inlet Door Actuator Dorman 604-158
2004-2009Cadillac SRX Cadillac SRX Air Inlet Door Actuator Dorman 604-158

This part replaces:

  • OE # 25740409
  • Dorman 604-158
Part #: 1AZMX00218

Out of Stock

Brand #: 604-158