Four Seasons 73619 HVAC Blend Door Actuator

Reliable HVAC Blend Door Actuator for Buick, Cadillac, Chevrolet, and GMC

The Four Seasons 73619 HVAC blend door actuator is designed to restore proper airflow control in your vehicle's heating and cooling system. Engineered for select Buick, Cadillac, Chevrolet, and GMC models, this actuator ensures precise temperature regulation and improved cabin comfort.

• Door linkage type: Male for secure connection
• Mounting ear quantity: 3 for stable installation
• Style: HVAC air door actuator designed for blend door control
• Terminal pin quantity: 6 for reliable electrical connectivity

Product Details and Specifications

This HVAC blend door actuator from Four Seasons features a male door linkage that interfaces directly with the blend door mechanism, providing accurate movement and temperature control. The actuator includes three mounting ears, which help maintain a firm and vibration-resistant fit within the HVAC housing. With six terminal pins, it offers a dependable electrical connection to your vehicle’s climate control system. This part is compatible with Buick Acadia, Cadillac XT5 and XT6, Chevrolet Blazer and Traverse, and GMC Acadia models, ensuring a precise fit and function.

Common Applications and Issues Addressed

• Restores proper blend door movement for accurate temperature control
• Eliminates inconsistent airflow or temperature fluctuations inside the cabin
• Resolves clicking or knocking noises from the HVAC system
• Fixes failure of the HVAC system to switch between heat and air conditioning modes
• Prevents actuator motor burnout or electrical connection failures

Installation Notes and Tips

When installing the Four Seasons 73619 blend door actuator, ensure the male door linkage aligns correctly with the blend door arm. Secure the actuator using the three mounting ears to prevent movement or vibration. Verify the six terminal pins are properly connected to the vehicle’s wiring harness to maintain electrical integrity. It is recommended to test the actuator operation before reassembling the dashboard components.

Quality Assurance and Warranty

Four Seasons manufactures this HVAC blend door actuator 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. Refer to the product packaging or manufacturer documentation for exact warranty terms.