Four Seasons 73128 HVAC Mode Door Actuator

Reliable HVAC Mode Door Actuator for Buick, Oldsmobile, and Pontiac

The Four Seasons Air Door Actuator 73128 is designed to restore proper airflow control in your vehicle's HVAC system. Engineered for select Buick, Oldsmobile, and Pontiac models, this actuator ensures precise operation of the HVAC mode door for consistent cabin comfort.

• Compatible with Buick Aztek, Oldsmobile Silhouette, Pontiac Montana, Rendezvous
• HVAC mode door actuator style with female door linkage
• Equipped with 3 mounting ears for secure installation
• Features 4 terminal pins for reliable electrical connection

Product Line Details: Four Seasons Air Door Actuator

The Four Seasons Air Door Actuator line focuses on delivering dependable HVAC components that regulate airflow within vehicle climate control systems. The 73128 actuator is part of this line, providing precise movement of the HVAC mode door to direct air through the appropriate vents. This ensures your Buick Aztek, Oldsmobile Silhouette, or Pontiac Montana and Rendezvous models maintain optimal interior temperature control.

Technical Description and Attributes

This HVAC mode door actuator features a female door linkage designed to interface directly with the vehicle’s HVAC door mechanism. It includes three mounting ears, which provide stable and secure attachment points during installation. The actuator is equipped with four terminal pins, ensuring a solid electrical connection for accurate signal transmission and operation. The style is specifically tailored as an HVAC air door actuator, making it suitable for controlling airflow direction in the HVAC system.

Common HVAC Issues Addressed by Part Number 73128

• Inconsistent or stuck HVAC mode door causing improper airflow direction
• Failure to switch between vent, floor, and defrost modes
• Unresponsive climate control settings in Buick Aztek, Oldsmobile Silhouette, Pontiac Montana, or Rendezvous
• Electrical connection problems due to worn or damaged actuator terminals
• Noise or clicking sounds from malfunctioning HVAC door actuator

Installation Notes and Tips

When installing the Four Seasons Air Door Actuator 73128, ensure the female door linkage aligns correctly with the HVAC door mechanism. Verify that all three mounting ears are securely fastened to prevent actuator movement during operation. Check the four terminal pins for corrosion or damage before connecting to the vehicle’s wiring harness. Proper alignment and secure electrical connections are critical for optimal actuator performance.

Quality Assurance and Warranty

Four Seasons manufactures the Air Door Actuator 73128 to meet or exceed OEM specifications 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 ensures reliable operation in Buick, Oldsmobile, and Pontiac HVAC systems.