Four Seasons 73665 HVAC Blend Door Actuator - Left

Reliable HVAC Blend Door Actuator for Nissan and Infiniti Vehicles

The Four Seasons 73665 HVAC blend door actuator is designed to restore proper airflow control in your vehicle's heating and cooling system. Compatible with select Nissan and Infiniti models, this actuator features a durable male door linkage and a secure mounting design to ensure consistent performance.

• Male door linkage for precise control
• Four mounting ears for stable installation
• Three terminal pins for reliable electrical connection
• HVAC air door actuator style for blend door operation
• Compatible with Nissan Altima, Armada, Maxima, NV1500, NV2500, NV3500, and Infiniti QX56, QX80

Product Details and Specifications

The Four Seasons 73665 blend door actuator is engineered to operate the HVAC blend door, regulating the mix of hot and cold air inside the vehicle cabin. It features a male door linkage that interfaces directly with the blend door mechanism, providing accurate movement. The actuator mounts securely using four mounting ears, ensuring it remains firmly in place during vehicle operation. Equipped with three terminal pins, it offers a stable electrical connection for consistent actuator response. This part is designed specifically for Nissan and Infiniti models including the Altima, Armada, Maxima, NV1500, NV2500, NV3500, QX56, and QX80, making it a precise replacement for the original equipment.

Common Applications and Problem Resolution

• Restores proper temperature control by correcting blend door movement
• Eliminates inconsistent airflow or temperature fluctuations inside the cabin
• Resolves HVAC system noises caused by faulty actuators
• Fixes issues with air not switching between vents correctly
• Addresses failure of the blend door to respond to climate control settings

Installation Notes and Tips

When installing the Four Seasons 73665 blend door actuator, ensure the male door linkage aligns correctly with the blend door mechanism. Secure the actuator using all four mounting ears to prevent movement or vibration. Verify the three 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 to confirm proper function.

Quality Assurance and Warranty Information

Four Seasons parts are manufactured to meet or exceed OEM standards for fit and function. The 73665 blend door actuator undergoes quality checks to ensure durability and reliable performance in Nissan and Infiniti HVAC systems. Please refer to Four Seasons’ official warranty policy for specific coverage details.