HomeHVAC > Temperature Controls and Related ComponentsFour Seasons 73030 HVAC Mode Door Actuator
Part #: 73030

Four Seasons 73030 HVAC Mode Door Actuator

Air Door Actuator, N/A
⚙️ 5 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Air Door Actuator, N/A
🚗Fitment: Chevrolet, GMC, and Oldsmobile, Trailblazer, Trailblazer EXT, Envoy, Envoy XL, and Bravada
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Reliable HVAC Mode Door Actuator for Chevrolet and GMC Vehicles

The Four Seasons Air Door Actuator 73030 is designed to restore proper airflow control in your vehicle's HVAC system. Compatible with Chevrolet Bravada, GMC Envoy, Envoy XL, Trailblazer, and Trailblazer EXT models, this actuator ensures precise operation of the HVAC mode doors.

  • Female door linkage for secure connection
  • Three mounting ears for stable installation
  • HVAC air door actuator style for accurate airflow control
  • Five terminal pins for reliable electrical connectivity
  • Part number 73030 for exact fitment

About the Four Seasons Air Door Actuator Product Line

The Air Door Actuator line by Four Seasons focuses on delivering dependable HVAC components that regulate airflow within vehicle climate control systems. This product line includes actuators engineered to meet OEM specifications, providing consistent performance and durability. The 73030 actuator is part of this line, designed specifically to control mode doors in select Chevrolet, GMC, and Oldsmobile models.

Detailed Product Description

The Four Seasons Air Door Actuator 73030 features a female door linkage that ensures a secure mechanical connection to the HVAC mode door. It includes three mounting ears, which provide a stable and precise fit during installation, minimizing vibration and potential misalignment. The actuator style is tailored for HVAC air door control, allowing it to accurately position the mode door to direct airflow as intended. With five terminal pins, this actuator offers a reliable electrical interface for consistent signal transmission and operation. This part is engineered to replace the original actuator in Chevrolet Bravada, GMC Envoy, Envoy XL, Trailblazer, and Trailblazer EXT vehicles, ensuring compatibility and proper function.

Common HVAC Issues Addressed by This Actuator

  • Inconsistent or incorrect airflow direction in HVAC system
  • Failure of HVAC mode door to move or respond
  • Unusual noises from the HVAC system due to faulty actuator
  • Intermittent heating or cooling performance
  • Electrical connection problems causing HVAC malfunction

Installation Notes and Tips

  • Verify vehicle compatibility with Chevrolet Bravada, GMC Envoy, Envoy XL, Trailblazer, or Trailblazer EXT before installation
  • Ensure the three mounting ears align properly for secure attachment
  • Handle the five terminal pins carefully to avoid damage during electrical connection
  • Test actuator operation before reassembling the dashboard or HVAC housing
  • Consult vehicle service manual for specific removal and installation procedures

Quality Assurance and Warranty

Four Seasons manufactures the Air Door Actuator 73030 to meet industry standards for durability and performance. While specific warranty details are not provided here, Four Seasons products typically come with a limited warranty covering defects in materials and workmanship. This actuator is built to provide reliable service in the HVAC system of compatible Chevrolet and GMC vehicles.

BrandFour Seasons
Part Number73030
PositionAir Door Actuator, N/A
Door LinkageFemale
Mounting Ear Qty.3
StyleHVAC Air Door Actuator
Terminal Pin Qty.5

This part fits 5 vehicles. Search below:

YearMakeModelPositionNotes
2002ChevroletTrailblazerN/AHVAC Mode Door Actuator controls recirculation door functionality.; Air Door Actuator
2002ChevroletTrailblazer EXTN/AHVAC Mode Door Actuator controls recirculation door functionality.; Air Door Actuator
2002GMCEnvoyN/AHVAC Mode Door Actuator controls recirculation door functionality.; Air Door Actuator
2002GMCEnvoy XLN/AHVAC Mode Door Actuator controls recirculation door functionality.; Air Door Actuator
2002OldsmobileBravadaN/AHVAC Mode Door Actuator controls recirculation door functionality.; Air 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:

15730441712073524894266041056041156552299730308901852589018539A27330BDAH1042CE0613056MT18515

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