Four Seasons 73649 HVAC Mode Door Actuator

Reliable HVAC Mode Door Actuator for Lexus IS250 and IS350

The Four Seasons 73649 HVAC Mode Door Actuator is designed to restore proper airflow control in your Lexus IS250 or IS350. This actuator features a durable arm-type door linkage and precise 5-terminal pin configuration to ensure accurate HVAC system operation.

• Arm-style door linkage for consistent HVAC door movement
• Four mounting ears for secure installation
• Five terminal pins for reliable electrical connection
• Specifically engineered for Lexus IS250 and IS350 models
• Part number 73649 for exact replacement compatibility

Product Details and Specifications

The Four Seasons 73649 HVAC Mode Door Actuator is a direct-fit replacement part designed to control the air door position within the HVAC system of Lexus IS250 and IS350 vehicles. Its arm-style door linkage provides precise mechanical movement, ensuring the correct distribution of airflow through the vehicle’s heating and cooling vents. The actuator mounts securely using four mounting ears, which help maintain stability and reduce vibration during operation. Equipped with five terminal pins, this actuator offers a reliable electrical interface for seamless integration with the vehicle’s HVAC control module.

Common HVAC Issues Addressed by This Actuator

• Inconsistent or incorrect airflow direction inside the cabin
• Failure of the HVAC system to switch between heating and cooling modes
• Unresponsive or stuck air door movement
• Unusual noises from the HVAC system due to faulty actuator movement
• Electrical connection problems causing intermittent HVAC operation

Installation Notes and Tips

When installing the Four Seasons 73649 HVAC Mode Door Actuator, ensure the four mounting ears align properly with the vehicle’s HVAC housing. Verify the five terminal pins are fully seated to maintain a secure electrical connection. It is recommended to test the actuator’s movement before final assembly to confirm proper operation. Handle the arm linkage carefully to avoid bending or damage during installation.

Quality Assurance and Warranty Information

Four Seasons manufactures the 73649 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. Refer to the product packaging or manufacturer documentation for exact warranty terms.