Global Parts 1712073 HVAC Mode Door Actuator
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Global Parts

Global Parts 1712073 HVAC Mode Door Actuator

Brand Global Parts 1712073
Fits Chevrolet, GMC, Saab, Isuzu, and Oldsmobile · 73 vehicles

Mode door actuator. Opens and closes selected vents for precise climate control.

Adjusts to meet selected climate settings.

Cross-references Dayco 73030, Dorman - OE Solutions 604-105 and Dorman - OE Solutions 604-115 for the same application. See all 17.

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HVAC Mode Door Actuator for GM SUVs

Restore proper vent selection and cabin airflow control with this Global Parts HVAC mode door actuator. Part number 1712073 is a direct-fit style replacement for select Chevrolet, GMC, Saab, Isuzu, and Oldsmobile applications with rear A/C, including Trailblazer, Envoy, and related platforms.

Key Features

  • Controls the HVAC mode door to direct air to the selected vents
  • Built for vehicles with rear A/C where specified in the fitment data
  • Addresses mode-door movement issues that affect dash, floor, and defrost airflow
  • Cross-references Dayco 73030 and Dorman OE Solutions 604-105 / 604-115 for the same application
  • Global Parts part number 1712073 for easy catalog matching

Product Details

The HVAC mode door actuator is the component that moves the mode door inside the climate control housing, allowing the system to route air to the dash vents, floor outlets, or defrost outlets. Global Parts 1712073 is listed for 2002-2009 Chevrolet Trailblazer and Trailblazer EXT, 2002-2009 GMC Envoy and Envoy XL, 2004-2005 GMC Envoy XUV, 2002-2004 Oldsmobile Bravada, 2003-2008 Isuzu Ascender, and 2005-2009 Saab 9-7x, with rear A/C coverage where noted. This part number 1712073 is a practical replacement when the original actuator no longer responds correctly to climate-control commands.

Common Problems It Can Address

  • Air only coming from one vent position
  • No change between dash, floor, and defrost settings
  • Clicking or repeated movement from the HVAC housing
  • Inconsistent airflow routing in rear A/C equipped vehicles
  • Loss of proper mode-door response after actuator wear

Installation Notes

Verify the vehicle’s HVAC configuration and rear A/C equipment before ordering. Match the part number 1712073 to the original actuator location and confirm connector style and mounting points against the removed unit. After installation, cycle the climate controls through each mode setting to confirm smooth door movement and correct airflow routing.

Quality Assurance

Global Parts supplies replacement HVAC components for service applications, and this actuator is cataloged with multiple OE-style cross-references for the same fitment group. Use the confirmed vehicle listing to verify application before installation.

Related reading

This part fits 73 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2009ChevroletTrailblazer4.2LL6N/AMode Door Actuator; w/ Rear AC
2009ChevroletTrailblazer5.3LV8N/AMode Door Actuator; w/ Rear AC
2009ChevroletTrailblazer6.0LV8N/AMode Door Actuator; w/ Rear AC
2009GMCEnvoy4.2LL6N/AMode Door Actuator; w/ Rear AC
2009GMCEnvoy5.3LV8N/AMode Door Actuator; w/ Rear AC
2009Saab9-7x5.3LV8N/AMode Door Actuator; w/ Rear AC
2009Saab9-7x4.2LL6N/AMode Door Actuator; w/ Rear AC
2009Saab9-7x6.0LV8N/AMode Door Actuator; w/ Rear AC
2008ChevroletTrailblazer4.2LL6N/AMode Door Actuator; w/ Rear AC
2008ChevroletTrailblazer5.3LV8N/AMode Door Actuator; w/ Rear AC
2008ChevroletTrailblazer6.0LV8N/AMode Door Actuator; w/ Rear AC
2008GMCEnvoy4.2LL6N/AMode Door Actuator; w/ Rear AC
2008GMCEnvoy5.3LV8N/AMode Door Actuator; w/ Rear AC
2008IsuzuAscender4.2LL6N/AMode Door Actuator; w/ Rear AC
2008Saab9-7x5.3LV8N/AMode Door Actuator; w/ Rear AC
2008Saab9-7x4.2LL6N/AMode Door Actuator; w/ Rear AC
2008Saab9-7x6.0LV8N/AMode Door Actuator; w/ Rear AC
2007ChevroletTrailblazer5.3LV8N/AMode Door Actuator; w/ Rear AC
2007GMCEnvoy5.3LV8N/AMode Door Actuator; w/ Rear AC
2007IsuzuAscender4.2LL6N/AMode Door Actuator; w/ Rear AC
2007Saab9-7x5.3LV8N/AMode Door Actuator; w/ Rear AC
2007Saab9-7x4.2LL6N/AMode Door Actuator; w/ Rear AC
2006ChevroletTrailblazer5.3LV8N/AMain Mode Door Actuator compatible with Rear AC functions.
2006ChevroletTrailblazer6.0LV8N/AMain Mode Door Actuator compatible with Rear AC functions.
2006ChevroletTrailblazer4.2LL6N/AMain Mode Door Actuator compatible with Rear AC functions.
2006ChevroletTrailblazer EXT4.2LL6N/AMain Mode Door Actuator compatible with Rear AC functions.
2006ChevroletTrailblazer EXT5.3LV8N/AMain Mode Door Actuator compatible with Rear AC functions.
2006GMCEnvoy5.3LV8N/AMain Mode Door Actuator compatible with Rear AC functions.
2006GMCEnvoy4.2LL6N/AMain Mode Door Actuator compatible with Rear AC functions.
2006GMCEnvoy XL4.2LL6N/AMain Mode Door Actuator compatible with Rear AC functions.
2006GMCEnvoy XL5.3LV8N/AMain Mode Door Actuator compatible with Rear AC functions.
2006IsuzuAscender4.2LL6N/AMode Door Actuator; w/ Rear AC
2006IsuzuAscender5.3LV8N/AMode Door Actuator; w/ Rear AC
2006Saab9-7x5.3LV8N/AMode Door Actuator; w/ Rear AC
2006Saab9-7x4.2LL6N/AMode Door Actuator; w/ Rear AC
2005ChevroletTrailblazer4.2LL6N/AMain Mode Door Actuator compatible with Rear AC functions.
2005ChevroletTrailblazer EXT4.2LL6N/AMain Mode Door Actuator compatible with Rear AC functions.
2005ChevroletTrailblazer EXT5.3LV8N/AMain Mode Door Actuator compatible with Rear AC functions.
2005GMCEnvoy5.3LV8N/AMain Mode Door Actuator compatible with Rear AC functions.
2005GMCEnvoy4.2LL6N/AMain Mode Door Actuator compatible with Rear AC functions.
2005GMCEnvoy XL4.2LL6N/AMain Mode Door Actuator compatible with Rear AC functions.
2005GMCEnvoy XL5.3LV8N/AMain Mode Door Actuator compatible with Rear AC functions.
2005GMCEnvoy XUV4.2LL6N/AMain Mode Door Actuator compatible with Rear AC functions.
2005GMCEnvoy XUV5.3LV8N/AMain Mode Door Actuator compatible with Rear AC functions.
2005IsuzuAscender4.2LL6N/AMode Door Actuator; w/ Rear AC
2005IsuzuAscender5.3LV8N/AMode Door Actuator; w/ Rear AC
2005Saab9-7x5.3LV8N/AMode Door Actuator; w/ Rear AC
2005Saab9-7x4.2LL6N/AMode Door Actuator; w/ Rear AC
2004ChevroletTrailblazer4.2LL6N/AMain Mode Door Actuator compatible with Rear AC functions.
2004ChevroletTrailblazer EXT4.2LL6N/AMain Mode Door Actuator compatible with Rear AC functions.
2004ChevroletTrailblazer EXT5.3LV8N/AMain Mode Door Actuator compatible with Rear AC functions.
2004GMCEnvoy4.2LL6N/AMain Mode Door Actuator compatible with Rear AC functions.
2004GMCEnvoy XL4.2LL6N/AMain Mode Door Actuator compatible with Rear AC functions.
2004GMCEnvoy XL5.3LV8N/AMain Mode Door Actuator compatible with Rear AC functions.
2004GMCEnvoy XUV4.2LL6N/AMain Mode Door Actuator compatible with Rear AC functions.
2004GMCEnvoy XUV5.3LV8N/AMain Mode Door Actuator compatible with Rear AC functions.
2004IsuzuAscender4.2LL6N/AMode Door Actuator; w/ Rear AC
2004IsuzuAscender5.3LV8N/AMode Door Actuator; w/ Rear AC
2004OldsmobileBravada4.2LL6N/AMode Door Actuator; w/ Rear AC
2003ChevroletTrailblazer4.2LL6N/AMain Mode Door Actuator compatible with Rear AC functions.
2003ChevroletTrailblazer EXT4.2LL6N/AMain Mode Door Actuator compatible with Rear AC functions.
2003ChevroletTrailblazer EXT5.3LV8N/AMain Mode Door Actuator compatible with Rear AC functions.
2003GMCEnvoy4.2LL6N/AMain Mode Door Actuator compatible with Rear AC functions.
2003GMCEnvoy XL4.2LL6N/AMain Mode Door Actuator compatible with Rear AC functions.
2003GMCEnvoy XL5.3LV8N/AMain Mode Door Actuator compatible with Rear AC functions.
2003IsuzuAscender4.2LL6N/AMode Door Actuator; w/ Rear AC
2003IsuzuAscender5.3LV8N/AMode Door Actuator; w/ Rear AC
2003OldsmobileBravada4.2LL6N/AMode Door Actuator; w/ Rear AC
2002ChevroletTrailblazer4.2LL6N/AMode Door Actuator for main HVAC system.
2002ChevroletTrailblazer EXT4.2LL6N/AMode Door Actuator for main HVAC system.
2002GMCEnvoy4.2LL6N/AMode Door Actuator for main HVAC system.
2002GMCEnvoy XL4.2LL6N/AMode Door Actuator for main HVAC system.
2002OldsmobileBravada4.2LL6N/AMode Door Actuator; w/ Rear AC
Directly replaces or cross-references 17 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Dayco — 73030Dorman - OE Solutions — 604-105Dorman - OE Solutions — 604-115Standard Ignition — ADR119TechSmart — F0402115-73044604105604115524894268901852589018539ADA148ADS119CE0613056DA1045SK604105SK604115