HomeHVAC > Temperature Controls and Related ComponentsFour Seasons 73238 HVAC Blend Door Actuator - Left Main or Main
Part #: 73238

Four Seasons 73238 HVAC Blend Door Actuator - Left Main or Main

Air Door Actuator, Left Main
⚙️ 29 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Air Door Actuator, Left Main
🚗Fitment: Buick, Chevrolet, Pontiac, and Oldsmobile, Rendezvous, Venture, Aztek, Silhouette, and Montana
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Reliable HVAC Blend Door Actuator for Buick, Oldsmobile, and Pontiac

The Four Seasons Air Door Actuator 73238 is designed to restore proper airflow control in your vehicle's HVAC system. Compatible with Buick Aztek, Oldsmobile Silhouette, and Pontiac Montana and Rendezvous models, this actuator ensures precise blend door movement for optimal cabin temperature regulation.

  • HVAC blend door actuator with arm-style door linkage
  • Equipped with 3 mounting ears for secure installation
  • Features 4 terminal pins for reliable electrical connection
  • Part number 73238 for exact fitment on specified GM models
  • Compatible with Buick Aztek, Oldsmobile Silhouette, Pontiac Montana, and Rendezvous

Four Seasons Air Door Actuator Product Line Overview

The Air Door Actuator line by Four Seasons focuses on delivering precise control of HVAC air doors to maintain consistent cabin comfort. This product line includes actuators engineered to match OEM specifications, featuring durable components such as arm-style door linkages and multiple mounting points to ensure proper fit and function. The 73238 actuator is part of this line, providing dependable operation for select GM vehicles.

Detailed Product Description and Attributes

The Four Seasons 73238 HVAC blend door actuator is designed with an arm-style door linkage that moves the blend door smoothly to regulate air temperature inside the vehicle. It includes three mounting ears, which provide a stable and secure attachment to the HVAC housing, minimizing vibration and noise. The actuator uses four terminal pins to establish a solid electrical connection, ensuring consistent performance. This actuator style is specifically engineered for HVAC air door control, making it suitable for the blend door function in Buick Aztek, Oldsmobile Silhouette, and Pontiac Montana and Rendezvous models.

Common HVAC Issues Addressed by This Actuator

  • Inconsistent cabin temperature due to blend door malfunction
  • HVAC system failing to switch between hot and cold air
  • Unusual noises from the HVAC system indicating actuator wear
  • Airflow stuck in one position or not responding to controls
  • Electrical connection problems causing intermittent HVAC operation

Installation Notes and Tips

  • Ensure vehicle compatibility with Buick Aztek, Oldsmobile Silhouette, Pontiac Montana, or Rendezvous before installation
  • Disconnect the battery to prevent electrical shorts during replacement
  • Carefully remove the old actuator and note the position of the blend door linkage arm
  • Align the new actuator’s arm linkage and secure it using the three mounting ears
  • Verify the four terminal pins are properly connected to the vehicle’s wiring harness
  • Test the HVAC system for proper blend door movement before reassembling panels

Quality Assurance and Warranty Information

Four Seasons manufactures the 73238 Air Door Actuator to meet or exceed OEM standards for durability and performance. Each actuator undergoes quality control testing to ensure reliable operation within the HVAC system. While specific warranty details may vary, Four Seasons typically offers coverage against defects in materials and workmanship, providing confidence in the product’s longevity and function.

BrandFour Seasons
Part Number73238
PositionAir Door Actuator, Left Main
Door LinkageArm
Mounting Ear Qty.3
StyleHVAC Air Door Actuator
Terminal Pin Qty.4

This part fits 29 vehicles. Search below:

YearMakeModelPositionNotes
2007BuickRendezvousMainNot compatible with dual-zone climate control.; Air Door Actuator
2007BuickRendezvousLeft MainVehicle is compatible with Dual Zone Climate Control for HVAC Recirculation Door Actuator.; Air Door Actuator
2006BuickRendezvousMainNot compatible with dual-zone climate control.; Air Door Actuator
2006BuickRendezvousLeft MainVehicle is compatible with Dual Zone Climate Control for HVAC Recirculation Door Actuator.; Air Door Actuator
2005BuickRendezvousMainNot compatible with dual-zone climate control.; Air Door Actuator
2005BuickRendezvousLeft MainVehicle is compatible with Dual Zone Climate Control for HVAC Recirculation Door Actuator.; Air Door Actuator
2005PontiacAztekMainAir Door Actuator
2004BuickRendezvousMainNot compatible with dual-zone climate control.; Air Door Actuator
2004BuickRendezvousLeft MainVehicle is compatible with Dual Zone Climate Control for HVAC Recirculation Door Actuator.; Air Door Actuator
2004OldsmobileSilhouetteMainNot compatible with dual-zone climate control.; Air Door Actuator
2004OldsmobileSilhouetteLeft MainVehicle is compatible with Dual Zone Climate Control for HVAC Recirculation Door Actuator.; Air Door Actuator
2004PontiacAztekMainAir Door Actuator
2004PontiacMontanaMainAir Door Actuator
2003BuickRendezvousMainNot compatible with dual-zone climate control.; Air Door Actuator
2003BuickRendezvousLeft MainVehicle is compatible with Dual Zone Climate Control for HVAC Recirculation Door Actuator.; Air Door Actuator
2003OldsmobileSilhouetteMainNot compatible with dual-zone climate control.; Air Door Actuator
2003OldsmobileSilhouetteLeft MainVehicle is compatible with Dual Zone Climate Control for HVAC Recirculation Door Actuator.; Air Door Actuator
2003PontiacAztekMainAir Door Actuator
2003PontiacMontanaMainAir Door Actuator
2002BuickRendezvousMainNot compatible with dual-zone climate control.; Air Door Actuator
2002BuickRendezvousLeft MainVehicle is compatible with Dual Zone Climate Control for HVAC Recirculation Door Actuator.; Air Door Actuator
2002OldsmobileSilhouetteMainNot compatible with dual-zone climate control.; Air Door Actuator
2002OldsmobileSilhouetteLeft MainVehicle is compatible with Dual Zone Climate Control for HVAC Recirculation Door Actuator.; Air Door Actuator
2002PontiacAztekMainAir Door Actuator
2002PontiacMontanaMainAir Door Actuator
2001OldsmobileSilhouetteMainNot compatible with dual-zone climate control.; Air Door Actuator
2001OldsmobileSilhouetteLeft MainVehicle is compatible with Dual Zone Climate Control for HVAC Recirculation Door Actuator.; Air Door Actuator
2001PontiacAztekMainAir Door Actuator
2001PontiacMontanaMainAir Door Actuator

* 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:

1042494115726491712366604900655165073238A60238BDAB1215MT18707

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