Four Seasons
Air Door Actuator

Four Seasons 73027 HVAC Recirculation Door Actuator - Right Main

Brand Four Seasons 73027
Position Right Main
Door Linkage Female
Mounting Ear Qty. 3
Style HVAC Air Door Actuator
Terminal Pin Qty. 5
Product line Air Door Actuator
Fits Chevrolet, GMC, Saab, Isuzu, Buick, and Oldsmobile · 99 vehicles

Air door actuator. Controls HVAC airflow with a 5-pin electrical connection.

Female linkage. Designed with a female door linkage for secure engagement.

3 mounting ears. Provides a stable, three-ear mounting design.

Cross-references Autotecnica GM0613085, Four Seasons 73027 and 604126 for the same application. See all 10.

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HVAC Recirculation Door Actuator for GM SUVs

Restore proper cabin air control with the Four Seasons Air Door Actuator, part number 73027. This HVAC recirculation door actuator is built for vehicles with Automatic Temperature Control (ATC) and is listed for right main applications on select Chevrolet, GMC, Buick, Saab, Isuzu, and Oldsmobile models.

The Four Seasons Air Door Actuator line focuses on precise HVAC door movement for temperature and airflow control. Part number 73027 uses a 5-terminal pin layout, a female door linkage, and a 3-ear mounting style to match the specified HVAC air door actuator configuration.

Key Features

  • Four Seasons Air Door Actuator, part number 73027
  • HVAC recirculation door actuator for automatic climate control systems
  • Female door linkage
  • 3 mounting ears
  • 5 terminal pins
  • Fits right main HVAC positions on listed applications
  • Cross-references Autotecnica GM0613085 for the same application

Detailed Description

Use this HVAC air door actuator to control the recirculation or blend door movement inside the climate system. When the actuator responds correctly, the HVAC system can direct air as intended for heating, cooling, and cabin recirculation. This part number 73027 is listed for 2003-2009 Chevrolet Trailblazer, 2003-2009 GMC Envoy, 2004-2007 Buick Rainier, 2005-2009 Saab 9-7x, 2003-2008 Isuzu Ascender, 2004-2006 Chevrolet Trailblazer EXT, 2004-2006 GMC Envoy XL, 2004-2005 GMC Envoy XUV, 2004-2006 Chevrolet SSR, and 2004 Oldsmobile Bravada applications where the fitment notes match the vehicle configuration.

For buyers searching for a Chevrolet Trailblazer HVAC actuator, GMC Envoy recirculation door actuator, or Buick Rainier air door actuator, this Four Seasons 73027 listing provides the fitment details needed to match the correct HVAC setup. It is also listed for 2003 Chevrolet Trailblazer and Trailblazer EXT second-design ATC applications, along with 2003 GMC Envoy, Envoy XL, and Oldsmobile Bravada second-design ATC configurations.

What It Helps Address

  • Incorrect cabin temperature control
  • Airflow stuck in one vent mode
  • Recirculation door movement problems
  • HVAC clicking or actuator-related noise
  • Loss of proper automatic temperature control response

Installation Notes and Tips

Verify the vehicle year, make, model, and HVAC configuration before ordering, especially on 2003 second-design and ATC-equipped applications. Confirm the right main position, 5-pin terminal layout, female linkage, and 3-ear mounting style against the original part before installation. For best results, inspect the HVAC door and linkage for binding or damage before replacing the actuator.

Quality Assurance

Four Seasons supplies HVAC replacement components for climate control service applications. This actuator is cataloged to match the specified OE-style fitment and connector configuration for the listed vehicles.

This part fits 99 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelPositionNotes
2009ChevroletTrailblazerN/ACompatible with HVAC systems featuring Automatic Temperature Control (ATC).; Air Door Actuator
2009ChevroletTrailblazerRight MainAir Door Actuator
2009GMCEnvoyN/ACompatible with HVAC systems featuring Automatic Temperature Control (ATC).; Air Door Actuator
2009GMCEnvoyRight MainAir Door Actuator
2009Saab9-7xN/ACompatible with HVAC systems featuring Automatic Temperature Control (ATC).; Air Door Actuator
2009Saab9-7xRight MainAir Door Actuator
2008ChevroletTrailblazerN/ACompatible with HVAC systems featuring Automatic Temperature Control (ATC).; Air Door Actuator
2008ChevroletTrailblazerRight MainAir Door Actuator
2008GMCEnvoyN/ACompatible with HVAC systems featuring Automatic Temperature Control (ATC).; Air Door Actuator
2008GMCEnvoyRight MainAir Door Actuator
2008IsuzuAscenderN/ACompatible with HVAC systems featuring Automatic Temperature Control (ATC).; Air Door Actuator
2008IsuzuAscenderRight MainAir Door Actuator
2008Saab9-7xN/ACompatible with HVAC systems featuring Automatic Temperature Control (ATC).; Air Door Actuator
2008Saab9-7xRight MainAir Door Actuator
2007BuickRainierN/ACompatible with HVAC systems featuring Automatic Temperature Control (ATC).; Air Door Actuator
2007BuickRainierRight MainAir Door Actuator
2007ChevroletTrailblazerN/ACompatible with HVAC systems featuring Automatic Temperature Control (ATC).; Air Door Actuator
2007ChevroletTrailblazerRight MainAir Door Actuator
2007GMCEnvoyN/ACompatible with HVAC systems featuring Automatic Temperature Control (ATC).; Air Door Actuator
2007GMCEnvoyRight MainAir Door Actuator
2007IsuzuAscenderN/ACompatible with HVAC systems featuring Automatic Temperature Control (ATC).; Air Door Actuator
2007IsuzuAscenderRight MainAir Door Actuator
2007Saab9-7xN/ACompatible with HVAC systems featuring Automatic Temperature Control (ATC).; Air Door Actuator
2007Saab9-7xRight MainAir Door Actuator
2006BuickRainierN/ACompatible with HVAC systems featuring Automatic Temperature Control (ATC).; Air Door Actuator
2006BuickRainierRight MainAir Door Actuator
2006ChevroletSSRRight MainAir Door Actuator
2006ChevroletTrailblazerN/ACompatible with HVAC systems featuring Automatic Temperature Control (ATC).; Air Door Actuator
2006ChevroletTrailblazerRight MainAir Door Actuator
2006ChevroletTrailblazerBaseRight MainAir Door Actuator
2006ChevroletTrailblazerARight MainAir Door Actuator
2006ChevroletTrailblazerBRight MainAir Door Actuator
2006ChevroletTrailblazer EXTN/ACompatible with HVAC systems featuring Automatic Temperature Control (ATC).; Air Door Actuator
2006ChevroletTrailblazer EXTRight MainAir Door Actuator
2006GMCEnvoyN/ACompatible with HVAC systems featuring Automatic Temperature Control (ATC).; Air Door Actuator
2006GMCEnvoyRight MainAir Door Actuator
2006GMCEnvoy XLN/ACompatible with HVAC systems featuring Automatic Temperature Control (ATC).; Air Door Actuator
2006GMCEnvoy XLRight MainAir Door Actuator
2006IsuzuAscenderN/ACompatible with HVAC systems featuring Automatic Temperature Control (ATC).; Air Door Actuator
2006IsuzuAscenderRight MainAir Door Actuator
2006Saab9-7xN/ACompatible with HVAC systems featuring Automatic Temperature Control (ATC).; Air Door Actuator
2006Saab9-7xRight MainAir Door Actuator
2005BuickRainierN/ACompatible with HVAC systems featuring Automatic Temperature Control (ATC).; Air Door Actuator
2005BuickRainierRight MainAir Door Actuator
2005ChevroletSSRRight MainAir Door Actuator
2005ChevroletTrailblazerN/ACompatible with HVAC systems featuring Automatic Temperature Control (ATC).; Air Door Actuator
2005ChevroletTrailblazerRight MainAir Door Actuator
2005ChevroletTrailblazerBaseRight MainAir Door Actuator
2005ChevroletTrailblazerRRight MainAir Door Actuator
2005ChevroletTrailblazerARight MainAir Door Actuator
2005ChevroletTrailblazerBRight MainAir Door Actuator
2005ChevroletTrailblazerQRight MainAir Door Actuator
2005ChevroletTrailblazer EXTN/ACompatible with HVAC systems featuring Automatic Temperature Control (ATC).; Air Door Actuator
2005ChevroletTrailblazer EXTRight MainAir Door Actuator
2005GMCEnvoyN/ACompatible with HVAC systems featuring Automatic Temperature Control (ATC).; Air Door Actuator
2005GMCEnvoyRight MainAir Door Actuator
2005GMCEnvoy XLN/ACompatible with HVAC systems featuring Automatic Temperature Control (ATC).; Air Door Actuator
2005GMCEnvoy XLRight MainAir Door Actuator
2005GMCEnvoy XUVN/ACompatible with HVAC systems featuring Automatic Temperature Control (ATC).; Air Door Actuator
2005GMCEnvoy XUVRight MainAir Door Actuator
2005IsuzuAscenderN/ACompatible with HVAC systems featuring Automatic Temperature Control (ATC).; Air Door Actuator
2005IsuzuAscenderRight MainAir Door Actuator
2005Saab9-7xN/ACompatible with HVAC systems featuring Automatic Temperature Control (ATC).; Air Door Actuator
2005Saab9-7xRight MainAir Door Actuator
2004BuickRainierN/ACompatible with HVAC systems featuring Automatic Temperature Control (ATC).; Air Door Actuator
2004BuickRainierRight MainAir Door Actuator
2004ChevroletSSRRight MainAir Door Actuator
2004ChevroletTrailblazerN/ACompatible with HVAC systems featuring Automatic Temperature Control (ATC).; Air Door Actuator
2004ChevroletTrailblazerRight MainAir Door Actuator
2004ChevroletTrailblazerBaseRight MainAir Door Actuator
2004ChevroletTrailblazerARight MainAir Door Actuator
2004ChevroletTrailblazerBRight MainAir Door Actuator
2004ChevroletTrailblazer EXTN/ACompatible with HVAC systems featuring Automatic Temperature Control (ATC).; Air Door Actuator
2004ChevroletTrailblazer EXTRight MainAir Door Actuator
2004GMCEnvoyN/ACompatible with HVAC systems featuring Automatic Temperature Control (ATC).; Air Door Actuator
2004GMCEnvoyRight MainAir Door Actuator
2004GMCEnvoy XLN/ACompatible with HVAC systems featuring Automatic Temperature Control (ATC).; Air Door Actuator
2004GMCEnvoy XLRight MainAir Door Actuator
2004GMCEnvoy XUVN/ACompatible with HVAC systems featuring Automatic Temperature Control (ATC).; Air Door Actuator
2004GMCEnvoy XUVRight MainAir Door Actuator
2004IsuzuAscenderN/ACompatible with HVAC systems featuring Automatic Temperature Control (ATC).; Air Door Actuator
2004IsuzuAscenderRight MainAir Door Actuator
2004OldsmobileBravadaN/ACompatible with HVAC systems featuring Automatic Temperature Control (ATC).; Air Door Actuator
2004OldsmobileBravadaRight MainAir Door Actuator
2003ChevroletTrailblazerN/Aw/ ATC (Automatic Temperature Control); Second Design; Air Door Actuator
2003ChevroletTrailblazerRight MainSecond Design; Air Door Actuator
2003ChevroletTrailblazerBaseRight MainSecond Design; Air Door Actuator
2003ChevroletTrailblazer EXTN/Aw/ ATC (Automatic Temperature Control); Second Design; Air Door Actuator
2003ChevroletTrailblazer EXTRight MainSecond Design; Air Door Actuator
2003GMCEnvoyN/ASecond Design; Air Door Actuator
2003GMCEnvoyN/Aw/ ATC (Automatic Temperature Control); Second Design; Air Door Actuator
2003GMCEnvoyRight MainSecond Design; Air Door Actuator
2003GMCEnvoy XLN/ASecond Design; Air Door Actuator
2003GMCEnvoy XLN/Aw/ ATC (Automatic Temperature Control); Second Design; Air Door Actuator
2003GMCEnvoy XLRight MainSecond Design; Air Door Actuator
2003IsuzuAscenderN/ACompatible with HVAC systems featuring Automatic Temperature Control (ATC).; Air Door Actuator
2003IsuzuAscenderRight MainAir Door Actuator
2003OldsmobileBravadaN/Aw/ ATC (Automatic Temperature Control); Second Design; Air Door Actuator
2003OldsmobileBravadaRight MainSecond Design; Air Door Actuator
Directly replaces or cross-references 10 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Autotecnica — GM0613085Four Seasons — 7302760412615735976552330890186778890186770A27327BDAA1039MT18614