Four Seasons 73664 HVAC Mode Door Actuator - Auxiliary

Reliable HVAC Mode Door Actuator for Lexus LS460 and LS600h

The Four Seasons 73664 HVAC Mode Door Actuator is designed to restore proper airflow control in your Lexus LS460 or LS600h. This actuator features a durable arm-type door linkage and a secure mounting system to ensure consistent HVAC performance.

• Arm-style door linkage for precise HVAC air door movement
• Four mounting ears for stable and secure installation
• Five terminal pins for reliable electrical connections
• Compatible with Lexus LS460 and LS600h models
• Part number 73664 for accurate identification and fitment

Product Details and Specifications

This HVAC mode door actuator from Four Seasons is engineered to control the air door position within the heating, ventilation, and air conditioning system of your Lexus LS460 or LS600h. The actuator uses an arm-type door linkage, which provides smooth and accurate movement of the HVAC air door. It mounts securely with four mounting ears, ensuring the actuator remains firmly in place during operation. The five terminal pins allow for stable electrical connections, supporting consistent actuator function. The part number 73664 corresponds specifically to this actuator model, making it easier to find the correct replacement part for your vehicle.

Common HVAC Issues Addressed by This Actuator

• Inconsistent airflow direction inside the cabin
• Failure to switch between heating and cooling modes
• Unresponsive or stuck HVAC air doors
• Unusual noises from the HVAC system during mode changes
• Electrical connection problems causing actuator malfunction

Installation Notes and Tips

When installing the Four Seasons 73664 HVAC Mode Door Actuator, ensure the four mounting ears align properly with the vehicle’s HVAC housing. Verify that the five terminal pins are securely connected to avoid electrical issues. It is recommended to test the actuator’s movement before final assembly to confirm proper operation. Refer to the Lexus LS460 or LS600h service manual for detailed removal and installation procedures to avoid damage to surrounding components.

Quality Assurance and Warranty

Four Seasons manufactures this HVAC mode door actuator to meet or exceed OEM specifications for fit, form, and function. While specific warranty details are not provided here, Four Seasons products typically come with a limited warranty covering defects in materials and workmanship. For exact warranty terms, consult the product packaging or Four Seasons customer support.