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Part #: 604-922

Dorman 604-922 HVAC Blend Door Actuator - Main

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⚙️ 130 vehicles fit this part
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Select your vehicle to confirm fitment
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✅OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Chevrolet and GMC, Express 2500, Express 3500, Express Cargo, Express Pasajeros, Savana 2500, Savana 3500, Express 1500, and Savana 1500
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Overview of Dorman HVAC Blend Door Actuator 604-922

The Dorman HVAC Blend Door Actuator 604-922 is designed to provide reliable control of the air blend doors in your vehicle's heating and cooling system. This actuator features a rotary switch activation type and is constructed from durable plastic to ensure consistent performance in Chevrolet and GMC vans.

  • Rotary switch activation for precise air door control
  • Durable plastic construction for long-lasting use
  • Includes one air door actuator per package
  • Compatible with Chevrolet Express 1500, 2500, 3500 and GMC Savana 1500, 2500, 3500 models
  • OEM-quality replacement part number 604-922

Detailed Product Description

This HVAC blend door actuator from Dorman is engineered to replace the factory unit in Chevrolet Express and GMC Savana vans, specifically the 1500, 2500, and 3500 series. The actuator uses a rotary switch activation type, which allows it to accurately adjust the position of the blend door, regulating the mix of hot and cold air inside the vehicle cabin. Made from high-quality plastic, this part balances durability with lightweight design, helping maintain efficient HVAC system operation.

Common Applications and Issues Resolved

  • Restores proper airflow direction and temperature control in HVAC systems
  • Eliminates inconsistent cabin temperature caused by faulty blend door movement
  • Resolves clicking or knocking noises from the HVAC system blend door area
  • Fixes failure of air temperature adjustment in Chevrolet Express and GMC Savana vans
  • Addresses actuator motor failure or electrical issues related to blend door operation

Installation Notes and Tips

  • Ensure vehicle compatibility with Chevrolet Express 1500, 2500, 3500 or GMC Savana 1500, 2500, 3500 before installation
  • Disconnect the vehicle battery prior to actuator replacement to avoid electrical hazards
  • Carefully remove the dashboard panels to access the blend door actuator location
  • Verify the actuator's rotary switch mechanism aligns correctly with the blend door shaft
  • Test HVAC system operation after installation to confirm proper airflow and temperature control

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards, ensuring reliable fit and function. The HVAC blend door actuator 604-922 undergoes rigorous quality control to provide consistent performance in Chevrolet Express and GMC Savana vehicles. This part is backed by Dorman's limited warranty, covering defects in material and workmanship under normal use.

BrandDorman
Part Number604-922
MaterialPlastic
Package Contents1 Air Door Actuator
Switch Activation TypeRotary

This part fits 130 vehicles. Search below:

YearMakeModelPositionNotes
2018ChevroletExpress 2500MainPackaging Type: Box
2018ChevroletExpress 3500MainPackaging Type: Box
2018GMCSavana 2500MainPackaging Type: Box
2018GMCSavana 3500MainPackaging Type: Box
2017ChevroletExpress 2500MainPackaging Type: Box
2017ChevroletExpress 3500MainPackaging Type: Box
2017GMCSavana 2500MainPackaging Type: Box
2017GMCSavana 3500MainPackaging Type: Box
2016ChevroletExpress 2500MainHVAC Blend Door Actuator for mode selection in box packaging.
2016ChevroletExpress 3500MainHVAC Blend Door Actuator for mode selection in box packaging.
2016GMCSavana 2500MainHVAC Blend Door Actuator for mode selection in box packaging.
2016GMCSavana 3500MainHVAC Blend Door Actuator for mode selection in box packaging.
2015ChevroletExpress 2500MainHVAC Blend Door Actuator for mode selection in box packaging.
2015ChevroletExpress 3500MainHVAC Blend Door Actuator for mode selection in box packaging.
2015GMCSavana 2500MainHVAC Blend Door Actuator for mode selection in box packaging.
2015GMCSavana 3500MainHVAC Blend Door Actuator for mode selection in box packaging.
2014ChevroletExpress 1500MainHVAC Blend Door Actuator for mode selection in box packaging.
2014ChevroletExpress 2500MainHVAC Blend Door Actuator for mode selection in box packaging.
2014ChevroletExpress 3500MainHVAC Blend Door Actuator for mode selection in box packaging.
2014GMCSavana 1500MainHVAC Blend Door Actuator for mode selection in box packaging.
2014GMCSavana 2500MainHVAC Blend Door Actuator for mode selection in box packaging.
2014GMCSavana 3500MainHVAC Blend Door Actuator for mode selection in box packaging.
2013ChevroletExpress 1500MainHVAC Blend Door Actuator for mode selection in box packaging.
2013ChevroletExpress 2500MainHVAC Blend Door Actuator for mode selection in box packaging.
2013ChevroletExpress 3500MainHVAC Blend Door Actuator for mode selection in box packaging.
2013GMCSavana 1500MainHVAC Blend Door Actuator for mode selection in box packaging.
2013GMCSavana 2500MainHVAC Blend Door Actuator for mode selection in box packaging.
2013GMCSavana 3500MainHVAC Blend Door Actuator for mode selection in box packaging.
2012ChevroletExpress 1500MainHVAC Blend Door Actuator for mode selection in box packaging.
2012ChevroletExpress 2500MainHVAC Blend Door Actuator for mode selection in box packaging.
2012ChevroletExpress 3500MainHVAC Blend Door Actuator for mode selection in box packaging.
2012GMCSavana 1500MainHVAC Blend Door Actuator for mode selection in box packaging.
2012GMCSavana 2500MainHVAC Blend Door Actuator for mode selection in box packaging.
2012GMCSavana 3500MainHVAC Blend Door Actuator for mode selection in box packaging.
2011ChevroletExpress 1500MainHVAC Blend Door Actuator for mode selection in box packaging.
2011ChevroletExpress 2500MainHVAC Blend Door Actuator for mode selection in box packaging.
2011ChevroletExpress 3500MainHVAC Blend Door Actuator for mode selection in box packaging.
2011GMCSavana 1500MainHVAC Blend Door Actuator for mode selection in box packaging.
2011GMCSavana 2500MainHVAC Blend Door Actuator for mode selection in box packaging.
2011GMCSavana 3500MainHVAC Blend Door Actuator for mode selection in box packaging.
2010ChevroletExpress 1500MainHVAC Blend Door Actuator for mode selection in box packaging.
2010ChevroletExpress 2500MainHVAC Blend Door Actuator for mode selection in box packaging.
2010ChevroletExpress 3500MainHVAC Blend Door Actuator for mode selection in box packaging.
2010GMCSavana 1500MainHVAC Blend Door Actuator for mode selection in box packaging.
2010GMCSavana 2500MainHVAC Blend Door Actuator for mode selection in box packaging.
2010GMCSavana 3500MainHVAC Blend Door Actuator for mode selection in box packaging.
2009ChevroletExpress 1500MainHVAC Blend Door Actuator for mode selection in box packaging.
2009ChevroletExpress 2500MainHVAC Blend Door Actuator for mode selection in box packaging.
2009ChevroletExpress 3500MainHVAC Blend Door Actuator for mode selection in box packaging.
2009GMCSavana 1500MainHVAC Blend Door Actuator for mode selection in box packaging.
2009GMCSavana 2500MainHVAC Blend Door Actuator for mode selection in box packaging.
2009GMCSavana 3500MainHVAC Blend Door Actuator for mode selection in box packaging.
2008ChevroletExpress 1500MainHVAC Blend Door Actuator for mode selection in box packaging.
2008ChevroletExpress 2500MainHVAC Blend Door Actuator for mode selection in box packaging.
2008ChevroletExpress 3500MainHVAC Blend Door Actuator for mode selection in box packaging.
2008GMCSavana 1500MainHVAC Blend Door Actuator for mode selection in box packaging.
2008GMCSavana 2500MainHVAC Blend Door Actuator for mode selection in box packaging.
2008GMCSavana 3500MainHVAC Blend Door Actuator for mode selection in box packaging.
2007ChevroletExpress 1500MainHVAC Blend Door Actuator for mode selection in box packaging.
2007ChevroletExpress 2500MainHVAC Blend Door Actuator for mode selection in box packaging.
2007ChevroletExpress 3500MainHVAC Blend Door Actuator for mode selection in box packaging.
2007GMCSavana 1500MainHVAC Blend Door Actuator for mode selection in box packaging.
2007GMCSavana 2500MainHVAC Blend Door Actuator for mode selection in box packaging.
2007GMCSavana 3500MainHVAC Blend Door Actuator for mode selection in box packaging.
2006ChevroletExpress 1500MainHVAC Blend Door Actuator for mode selection in box packaging.
2006ChevroletExpress 2500MainHVAC Blend Door Actuator for mode selection in box packaging.
2006ChevroletExpress 3500MainHVAC Blend Door Actuator for mode selection in box packaging.
2006GMCSavana 1500MainHVAC Blend Door Actuator for mode selection in box packaging.
2006GMCSavana 2500MainHVAC Blend Door Actuator for mode selection in box packaging.
2006GMCSavana 3500MainHVAC Blend Door Actuator for mode selection in box packaging.
2005ChevroletExpress 1500MainHVAC Blend Door Actuator for mode selection in box packaging.
2005ChevroletExpress 2500MainHVAC Blend Door Actuator for mode selection in box packaging.
2005ChevroletExpress 3500MainHVAC Blend Door Actuator for mode selection in box packaging.
2005GMCSavana 1500MainHVAC Blend Door Actuator for mode selection in box packaging.
2005GMCSavana 2500MainHVAC Blend Door Actuator for mode selection in box packaging.
2005GMCSavana 3500MainHVAC Blend Door Actuator for mode selection in box packaging.
2004ChevroletExpress 1500MainHVAC Blend Door Actuator for mode selection in box packaging.
2004ChevroletExpress 2500MainHVAC Blend Door Actuator for mode selection in box packaging.
2004ChevroletExpress 3500MainHVAC Blend Door Actuator for mode selection in box packaging.
2004GMCSavana 1500MainHVAC Blend Door Actuator for mode selection in box packaging.
2004GMCSavana 2500MainHVAC Blend Door Actuator for mode selection in box packaging.
2004GMCSavana 3500MainHVAC Blend Door Actuator for mode selection in box packaging.
2003ChevroletExpress 1500MainHVAC Blend Door Actuator for mode selection in box packaging.
2003ChevroletExpress 2500MainHVAC Blend Door Actuator for mode selection in box packaging.
2003ChevroletExpress 3500MainHVAC Blend Door Actuator for mode selection in box packaging.
2003GMCSavana 1500MainHVAC Blend Door Actuator for mode selection in box packaging.
2003GMCSavana 2500MainHVAC Blend Door Actuator for mode selection in box packaging.
2003GMCSavana 3500MainHVAC Blend Door Actuator for mode selection in box packaging.
2002ChevroletExpress 1500MainHVAC Blend Door Actuator for mode selection in box packaging.
2002ChevroletExpress 2500MainHVAC Blend Door Actuator for mode selection in box packaging.
2002ChevroletExpress 3500MainHVAC Blend Door Actuator for mode selection in box packaging.
2002GMCSavana 1500MainHVAC Blend Door Actuator for mode selection in box packaging.
2002GMCSavana 2500MainHVAC Blend Door Actuator for mode selection in box packaging.
2002GMCSavana 3500MainHVAC Blend Door Actuator for mode selection in box packaging.
2001ChevroletExpress 1500MainHVAC Blend Door Actuator for mode selection in box packaging.
2001ChevroletExpress 2500MainHVAC Blend Door Actuator for mode selection in box packaging.
2001ChevroletExpress 3500MainHVAC Blend Door Actuator for mode selection in box packaging.
2001GMCSavana 1500MainHVAC Blend Door Actuator for mode selection in box packaging.
2001GMCSavana 2500MainHVAC Blend Door Actuator for mode selection in box packaging.
2001GMCSavana 3500MainHVAC Blend Door Actuator for mode selection in box packaging.
2000ChevroletExpress 1500MainHVAC Blend Door Actuator for mode selection in box packaging.
2000ChevroletExpress 2500MainHVAC Blend Door Actuator for mode selection in box packaging.
2000ChevroletExpress 3500MainHVAC Blend Door Actuator for mode selection in box packaging.
2000GMCSavana 1500MainHVAC Blend Door Actuator for mode selection in box packaging.
2000GMCSavana 2500MainHVAC Blend Door Actuator for mode selection in box packaging.
2000GMCSavana 3500MainHVAC Blend Door Actuator for mode selection in box packaging.
1999ChevroletExpress 1500MainHVAC Blend Door Actuator for mode selection in box packaging.
1999ChevroletExpress 2500MainHVAC Blend Door Actuator for mode selection in box packaging.
1999ChevroletExpress 3500MainHVAC Blend Door Actuator for mode selection in box packaging.
1999GMCSavana 1500MainHVAC Blend Door Actuator for mode selection in box packaging.
1999GMCSavana 2500MainHVAC Blend Door Actuator for mode selection in box packaging.
1999GMCSavana 3500MainHVAC Blend Door Actuator for mode selection in box packaging.
1998ChevroletExpress 1500MainHVAC Blend Door Actuator for mode selection in box packaging.
1998ChevroletExpress 2500MainHVAC Blend Door Actuator for mode selection in box packaging.
1998ChevroletExpress 3500MainHVAC Blend Door Actuator for mode selection in box packaging.
1998GMCSavana 1500MainHVAC Blend Door Actuator for mode selection in box packaging.
1998GMCSavana 2500MainHVAC Blend Door Actuator for mode selection in box packaging.
1998GMCSavana 3500MainHVAC Blend Door Actuator for mode selection in box packaging.
1997ChevroletExpress 1500MainHVAC Blend Door Actuator for mode selection in box packaging.
1997ChevroletExpress 2500MainHVAC Blend Door Actuator for mode selection in box packaging.
1997ChevroletExpress 3500MainHVAC Blend Door Actuator for mode selection in box packaging.
1997GMCSavana 1500MainHVAC Blend Door Actuator for mode selection in box packaging.
1997GMCSavana 2500MainHVAC Blend Door Actuator for mode selection in box packaging.
1997GMCSavana 3500MainHVAC Blend Door Actuator for mode selection in box packaging.
1996ChevroletExpress 1500MainHVAC Blend Door Actuator for mode selection in box packaging.
1996ChevroletExpress 2500MainHVAC Blend Door Actuator for mode selection in box packaging.
1996ChevroletExpress 3500MainHVAC Blend Door Actuator for mode selection in box packaging.
1996GMCSavana 1500MainHVAC Blend Door Actuator for mode selection in box packaging.
1996GMCSavana 2500MainHVAC Blend Door Actuator for mode selection in box packaging.
1996GMCSavana 3500MainHVAC Blend Door Actuator for mode selection in box packaging.

* 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:

1996836ADS4330APBDA0328

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

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