Four Seasons 73608 HVAC Mode Door Actuator

HVAC Mode Door Actuator for Honda and Acura

The Four Seasons 73608 HVAC mode door actuator is built for vehicles that need precise air-door movement inside the climate control system. It uses an arm-style door linkage, a 5-pin terminal layout, and a 4-ear mounting design to support accurate mode-door operation in the HVAC housing.

Compatible with select Honda Passport, Pilot, and Ridgeline models, as well as Acura MDX applications, this HVAC air door actuator is a direct-fit replacement for common auxiliary climate control concerns. Four Seasons backs this part with more than 50 years of mobile A/C experience and product testing focused on long-term operation.

Key Features

• Four Seasons part number 73608
• HVAC air door actuator / mode door actuator design
• Arm-style door linkage for controlled door movement
• 5-terminal pin configuration
• 4 mounting ears for secure installation
• Direct replacement for select Honda and Acura auxiliary HVAC applications

Detailed Description

The Four Seasons 73608 is an HVAC mode door actuator used to move the air distribution door inside the climate control system. In vehicles such as the Honda Pilot, Honda Ridgeline, Honda Passport, and Acura MDX, this component helps direct airflow to the proper vents based on the selected mode setting. Four Seasons engineers and tests its HVAC components for dependable operation, drawing on decades of mobile air conditioning experience. This part cross-references Global Parts Distributors LLC 1712721 for the same application.

Common Issues This Part May Resolve

• Airflow stuck on defrost, floor, or dash vents
• Clicking or ticking noises from the dash HVAC area
• Mode changes that do not respond correctly
• Inconsistent air distribution from the climate control system
• Auxiliary HVAC door movement problems in compatible Honda and Acura vehicles

Installation Notes and Tips

• Verify the actuator connector, terminal count, and mounting ear layout before installation.
• Inspect the HVAC door linkage and surrounding blend/mode door components for binding or damage.
• After installation, cycle the climate control modes to confirm smooth door movement and proper airflow routing.
• Use the vehicle’s service information for access points and calibration or relearn procedures, if required.

Quality Assurance

Four Seasons manufactures HVAC components with testing focused on reliable, trouble-free operation. The 73608 is supported by the brand’s long history in mobile A/C and climate control parts, making it a practical replacement choice for Honda Pilot, Honda Ridgeline, Honda Passport, and Acura MDX auxiliary HVAC service.