Dorman 604-922 HVAC Blend Door Actuator - Main
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Dorman

Dorman 604-922 HVAC Blend Door Actuator - Main

Brand Dorman 604-922
Position Main
Material Plastic
Package Contents 1 Air Door Actuator
Switch Activation Type Rotary
Fits Chevrolet and GMC · 130 vehicles

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

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

Plastic construction. Lightweight housing for HVAC actuator applications.

Cross-references 1996836, ADS4330 and APBDA0328 for the same application. See all 3.

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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

Dorman HVAC Blend Door Actuator for GM Vans

This Dorman HVAC blend door actuator is built for specific Chevrolet Express and GMC Savana applications where precise air door movement is needed for proper cabin airflow control. It uses a rotary switch activation design and a plastic housing to match the original actuator style on the listed vehicles.

Part number 604-922 is a direct-fit HVAC heater blend door actuator for mode selection on compatible Chevrolet Express and GMC Savana vans. It is engineered to match the quality and performance of the original actuator used in these applications.

Key Features

  • Rotary switch activation type for HVAC blend door operation
  • Plastic construction for OE-style fit and function
  • Designed for mode selection in the HVAC system
  • Fits Chevrolet Express and GMC Savana applications across multiple model years
  • Cross-references 1996836 and ADS4330 for the same application

Detailed Description

Dorman 604-922 is an HVAC blend door actuator made for Chevrolet Express 1500, 2500, and 3500, as well as GMC Savana 1500, 2500, and 3500 vans in the listed years. It controls the blend or mode door movement inside the HVAC system, helping direct airflow where the driver selects. If you are searching for a blend door actuator for a 1996-2018 Chevrolet Express or GMC Savana, this part number is a fitment-specific replacement option.

Use this actuator when the original unit no longer responds correctly, causing inconsistent vent selection or improper air distribution. The Dorman 604-922 part number is also useful when replacing a worn HVAC actuator on high-use commercial vans that rely on stable climate control.

What It Helps Fix

  • Airflow stuck on one vent position
  • HVAC mode changes that do not respond correctly
  • Intermittent or inaccurate blend door movement
  • Temperature or vent selection problems caused by actuator wear
  • Noisy actuator operation from internal gear or motor wear

Installation Notes and Tips

Verify the vehicle year, make, model, and HVAC position before ordering. This actuator is listed for the Main position on the specified Chevrolet Express and GMC Savana applications. Confirm the original connector style and actuator location against the removed part to ensure proper replacement.

For best results, inspect the blend door and HVAC housing for binding or damage before installing the new actuator. If the door is restricted, the replacement actuator may not operate correctly.

Quality Assurance

Dorman manufactures this actuator as an OE-style replacement for the listed vehicles, with engineering focused on matching original fit and performance. Part number 604-922 is built to serve the HVAC system requirements of compatible Chevrolet Express and GMC Savana vans.

  • Fits 2017-2018 Chevrolet Express 2500, Main
  • Fits 2017-2018 Chevrolet Express 3500, Main
  • Fits 2017-2018 GMC Savana 2500, Main
  • Fits 2017-2018 GMC Savana 3500, Main
  • Fits 1996-2016 Chevrolet Express 2500, Main
  • Fits 1996-2016 Chevrolet Express 3500, Main
  • Fits 1996-2016 GMC Savana 2500, Main
  • Fits 1996-2016 GMC Savana 3500, Main
  • Fits 1996-2014 Chevrolet Express 1500, Main
  • Fits 1996-2014 GMC Savana 1500, Main

Related reading

This part fits 130 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
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.
Directly replaces or cross-references 3 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
1996836ADS4330APBDA0328