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Dorman 604-125 HVAC Blend Door Actuator - AuxiliaryOE Quality 60-Day Returns
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Part #: 604-125

Dorman 604-125 HVAC Blend Door Actuator - Auxiliary

Auxiliary
⚙️ 162 vehicles fit this part
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✅OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Chevrolet, GMC, and Cadillac, Express 2500, Express 3500, Express Cargo, Express Pasajeros, Savana 2500, Savana 3500, Express 1500, Savana 1500, DeVille, Seville, G30, and G3500
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Overview of Dorman HVAC Blend Door Actuator 604-125

The Dorman HVAC Blend Door Actuator 604-125 is designed to provide reliable control of the HVAC system in select Cadillac, Chevrolet, and GMC vehicles. Featuring a rotary switch activation type and durable plastic construction, this actuator ensures precise airflow regulation for optimal cabin comfort.

  • Rotary switch activation for smooth and accurate HVAC control
  • Durable plastic material designed for long-lasting performance
  • Compatible with Cadillac DeVille and Seville models
  • Fits Chevrolet Express 1500, 2500, 3500, and GMC Savana 1500, 2500, 3500, and G30
  • Includes one HVAC blend door actuator per package

Detailed Product Description

The Dorman 604-125 HVAC blend door actuator is engineered to regulate the blend door position within the heating, ventilation, and air conditioning system. Its rotary switch activation type allows for precise modulation of air temperature by controlling the mix of hot and cold air entering the vehicle cabin. Constructed from durable plastic, this actuator is built to withstand the thermal and mechanical stresses typical in automotive HVAC systems. This part is specifically compatible with a range of Cadillac, Chevrolet, and GMC models, including the Cadillac DeVille and Seville, Chevrolet Express 1500, 2500, 3500, and GMC Savana 1500, 2500, 3500, and G30, ensuring proper fit and function.

Common Applications and Issues Resolved

  • Restores proper airflow direction and temperature control in HVAC systems
  • Eliminates inconsistent or stuck blend door movement
  • Resolves HVAC system noise caused by faulty actuators
  • Fixes issues with temperature fluctuations inside the vehicle cabin
  • Addresses failure of HVAC controls to respond correctly

Installation Notes and Tips

  • Ensure vehicle compatibility with the Dorman 604-125 before installation
  • Disconnect the battery prior to actuator replacement to prevent electrical issues
  • Access the blend door actuator through the dashboard or glove compartment area as per vehicle service manual
  • Handle the plastic actuator carefully to avoid damage during installation
  • Test HVAC system operation after installation to confirm proper function

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards, providing dependable performance for automotive HVAC systems. The 604-125 blend door actuator undergoes rigorous quality control to ensure durability and fitment accuracy. Warranty coverage details can be obtained from the product documentation or manufacturer resources.

BrandDorman
Part Number604-125
MaterialPlastic
Package ContentsActuator
Switch Activation TypeRotary

This part fits 162 vehicles. Search below:

YearMakeModelPositionNotes
2023ChevroletExpress 2500AuxiliaryPackaging Type: Box
2023ChevroletExpress 3500AuxiliaryPackaging Type: Box
2023GMCSavana 2500AuxiliaryPackaging Type: Box
2023GMCSavana 3500AuxiliaryPackaging Type: Box
2022ChevroletExpress 2500AuxiliaryPackaging Type: Box
2022ChevroletExpress 3500AuxiliaryPackaging Type: Box
2022GMCSavana 2500AuxiliaryPackaging Type: Box
2022GMCSavana 3500AuxiliaryPackaging Type: Box
2021ChevroletExpress 2500AuxiliaryPackaging Type: Box
2021ChevroletExpress 3500AuxiliaryPackaging Type: Box
2021GMCSavana 2500AuxiliaryPackaging Type: Box
2021GMCSavana 3500AuxiliaryPackaging Type: Box
2020ChevroletExpress 2500AuxiliaryPackaging Type: Box
2020ChevroletExpress 3500AuxiliaryPackaging Type: Box
2020GMCSavana 2500AuxiliaryPackaging Type: Box
2020GMCSavana 3500AuxiliaryPackaging Type: Box
2019ChevroletExpress 2500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2019ChevroletExpress 3500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2019GMCSavana 2500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2019GMCSavana 3500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2018ChevroletExpress 2500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2018ChevroletExpress 3500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2018GMCSavana 2500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2018GMCSavana 3500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2017ChevroletExpress 2500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2017ChevroletExpress 3500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2017GMCSavana 2500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2017GMCSavana 3500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2016ChevroletExpress 2500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2016ChevroletExpress 3500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2016GMCSavana 2500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2016GMCSavana 3500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2015ChevroletExpress 2500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2015ChevroletExpress 3500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2015GMCSavana 2500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2015GMCSavana 3500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2014ChevroletExpress 1500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2014ChevroletExpress 2500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2014ChevroletExpress 3500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2014GMCSavana 1500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2014GMCSavana 2500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2014GMCSavana 3500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2013ChevroletExpress 1500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2013ChevroletExpress 2500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2013ChevroletExpress 3500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2013GMCSavana 1500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2013GMCSavana 2500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2013GMCSavana 3500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2012ChevroletExpress 1500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2012ChevroletExpress 2500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2012ChevroletExpress 3500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2012GMCSavana 1500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2012GMCSavana 2500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2012GMCSavana 3500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2011ChevroletExpress 1500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2011ChevroletExpress 2500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2011ChevroletExpress 3500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2011GMCSavana 1500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2011GMCSavana 2500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2011GMCSavana 3500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2010ChevroletExpress 1500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2010ChevroletExpress 2500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2010ChevroletExpress 3500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2010GMCSavana 1500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2010GMCSavana 2500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2010GMCSavana 3500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2009ChevroletExpress 1500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2009ChevroletExpress 2500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2009ChevroletExpress 3500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2009GMCSavana 1500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2009GMCSavana 2500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2009GMCSavana 3500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2008ChevroletExpress 1500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2008ChevroletExpress 2500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2008ChevroletExpress 3500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2008GMCSavana 1500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2008GMCSavana 2500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2008GMCSavana 3500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2007ChevroletExpress 1500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2007ChevroletExpress 2500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2007ChevroletExpress 3500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2007GMCSavana 1500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2007GMCSavana 2500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2007GMCSavana 3500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2006ChevroletExpress 1500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2006ChevroletExpress 2500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2006ChevroletExpress 3500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2006GMCSavana 1500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2006GMCSavana 2500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2006GMCSavana 3500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2005ChevroletExpress 1500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2005ChevroletExpress 2500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2005ChevroletExpress 3500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2005GMCSavana 1500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2005GMCSavana 2500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2005GMCSavana 3500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2004CadillacDeVilleAuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2004CadillacSevilleAuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2004ChevroletExpress 1500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2004ChevroletExpress 2500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2004ChevroletExpress 3500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2004GMCSavana 1500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2004GMCSavana 2500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2004GMCSavana 3500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2003CadillacDeVilleAuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2003CadillacSevilleAuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2003ChevroletExpress 1500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2003ChevroletExpress 2500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2003ChevroletExpress 3500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2003GMCSavana 1500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2003GMCSavana 2500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2003GMCSavana 3500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2002CadillacDeVilleAuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2002CadillacSevilleAuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2002ChevroletExpress 1500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2002ChevroletExpress 2500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2002ChevroletExpress 3500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2002GMCSavana 1500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2002GMCSavana 2500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2002GMCSavana 3500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2001CadillacDeVilleAuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2001CadillacSevilleAuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2001ChevroletExpress 1500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2001ChevroletExpress 2500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2001ChevroletExpress 3500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2001GMCSavana 1500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2001GMCSavana 2500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2001GMCSavana 3500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2000CadillacDeVilleAuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2000CadillacSevilleAuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2000ChevroletExpress 1500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2000ChevroletExpress 2500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2000ChevroletExpress 3500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2000GMCSavana 1500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2000GMCSavana 2500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2000GMCSavana 3500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
1999ChevroletExpress 1500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
1999ChevroletExpress 2500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
1999ChevroletExpress 3500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
1999GMCSavana 1500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
1999GMCSavana 2500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
1999GMCSavana 3500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
1998ChevroletExpress 1500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
1998ChevroletExpress 2500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
1998ChevroletExpress 3500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
1998GMCSavana 1500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
1998GMCSavana 2500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
1998GMCSavana 3500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
1997ChevroletExpress 1500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
1997ChevroletExpress 2500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
1997ChevroletExpress 3500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
1997GMCSavana 1500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
1997GMCSavana 2500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
1997GMCSavana 3500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
1996ChevroletExpress 1500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
1996ChevroletExpress 2500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
1996ChevroletExpress 3500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
1996ChevroletG30AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
1996GMCG3500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
1996GMCSavana 1500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
1996GMCSavana 2500AuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
1996GMCSavana 3500AuxiliaryHVAC 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:

15-722621620909973062ADR117ADS117F04019SK604125

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

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