Dorman 604-130 HVAC Blend Door Actuator - Auxiliary
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Dorman

Dorman 604-130 HVAC Blend Door Actuator - Auxiliary

Brand Dorman 604-130
Position Auxiliary
Material Plastic
Package Contents Actuator
Switch Activation Type Rotary
Fits Isuzu, Chevrolet, and GMC · 32 vehicles

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

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

Plastic construction. Lightweight actuator built for dependable HVAC function.

Cross-references Four Seasons 73017, TechSmart F04026 and 15-72811 for the same application. See all 7.

$58.47Free shipping
In stock · usually ships same day before 1pm CST
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Free returns within 60 days if it doesn't fit when fitment is verified.
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Dorman 604-130 HVAC Blend Door Actuator

Dorman 604-130 is an HVAC blend door actuator built for specific vehicle applications that need precise temperature or mode control. It is engineered to match the fit and performance of the original actuator, with a rotary switch activation design and a plastic housing for direct replacement service.

Key Features

  • HVAC blend door actuator for temperature control or mode selection, depending on application
  • Rotary switch activation type for controlled HVAC door movement
  • Plastic construction for OE-style replacement fitment
  • Direct replacement for select Isuzu Ascender, Chevrolet Trailblazer EXT, and GMC Envoy XL applications
  • Part number 604-130 for easy identification and ordering

Product Details

This Dorman HVAC blend door actuator is designed for vehicles that rely on an electric actuator to move the HVAC blend or mode door inside the heater and air conditioning housing. It is a fitment-based replacement for select 2002-2008 Chevrolet Trailblazer EXT, 2002-2006 GMC Envoy XL, and 2003-2008 Isuzu Ascender models in the auxiliary position. The 604-130 actuator is built to restore proper HVAC door movement when the original unit no longer responds correctly.

This part cross-references Four Seasons 73017 for the same application.

What It Helps Fix

  • Incorrect cabin temperature control
  • HVAC air not switching between vents, floor, or defrost as commanded
  • Sticking or unresponsive blend door movement
  • Clicking or repeated actuator movement behind the dash
  • Loss of auxiliary HVAC control function

Installation Notes and Tips

Verify the vehicle year, make, model, and auxiliary position before installation. Compare the original actuator connector, mounting points, and switch style to confirm the replacement matches your HVAC system. For best results, inspect the blend door and HVAC housing for binding or damage before installing the new actuator.

Quality Assurance

Dorman designs this HVAC heater blend door actuator to match the quality and performance of the original part on the listed applications. Part number 604-130 is built as an OE-style replacement for specific vehicle fitments.

Related reading

This part fits 32 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2008IsuzuAscenderAuxiliaryTemperature control HVAC blend door actuator for box packaging.
2008IsuzuAscenderAuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2007IsuzuAscenderAuxiliaryTemperature control HVAC blend door actuator for box packaging.
2007IsuzuAscenderAuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2006ChevroletTrailblazer EXTAuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2006ChevroletTrailblazer EXTAuxiliaryTemperature control HVAC blend door actuator for box packaging.
2006GMCEnvoy XLAuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2006GMCEnvoy XLAuxiliaryTemperature control HVAC blend door actuator for box packaging.
2006IsuzuAscenderAuxiliaryTemperature control HVAC blend door actuator for box packaging.
2006IsuzuAscenderAuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2005ChevroletTrailblazer EXTAuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2005ChevroletTrailblazer EXTAuxiliaryTemperature control HVAC blend door actuator for box packaging.
2005GMCEnvoy XLAuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2005GMCEnvoy XLAuxiliaryTemperature control HVAC blend door actuator for box packaging.
2005IsuzuAscenderAuxiliaryTemperature control HVAC blend door actuator for box packaging.
2005IsuzuAscenderAuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2004ChevroletTrailblazer EXTAuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2004ChevroletTrailblazer EXTAuxiliaryTemperature control HVAC blend door actuator for box packaging.
2004GMCEnvoy XLAuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2004GMCEnvoy XLAuxiliaryTemperature control HVAC blend door actuator for box packaging.
2004IsuzuAscenderAuxiliaryTemperature control HVAC blend door actuator for box packaging.
2004IsuzuAscenderAuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2003ChevroletTrailblazer EXTAuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2003ChevroletTrailblazer EXTAuxiliaryTemperature control HVAC blend door actuator for box packaging.
2003GMCEnvoy XLAuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2003GMCEnvoy XLAuxiliaryTemperature control HVAC blend door actuator for box packaging.
2003IsuzuAscenderAuxiliaryTemperature control HVAC blend door actuator for box packaging.
2003IsuzuAscenderAuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2002ChevroletTrailblazer EXTAuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2002ChevroletTrailblazer EXTAuxiliaryTemperature control HVAC blend door actuator for box packaging.
2002GMCEnvoy XLAuxiliaryHVAC Blend Door Actuator for mode selection in box packaging.
2002GMCEnvoy XLAuxiliaryTemperature control HVAC blend door actuator for box packaging.
Directly replaces or cross-references 7 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Four Seasons — 73017TechSmart — F0402615-7281188892975ADS122APBDA0006SK604130