Four Seasons 73421 HVAC Recirculation Door Actuator

Four Seasons 73421 Air Door Actuator

The Four Seasons 73421 Air Door Actuator is an HVAC recirculation door actuator built for precise control of cabin airflow direction. It uses a female door linkage, a 5-pin terminal layout, and a 3-ear mounting design for a direct-fit replacement in supported applications.

Four Seasons Air Door Actuator components are built for HVAC service work where accurate door movement matters. This part number, 73421, is listed for select Dodge Hornet, Fiat 500X, Jeep Renegade, and Jeep Compass applications.

Key Features

• HVAC recirculation door actuator for cabin air control
• Female door linkage for the specified door connection
• 3 mounting ears for secure installation alignment
• 5 terminal pins for the listed electrical interface
• Direct replacement part number 73421
• Cross-reference: 68266033AA

Detailed Description

This Four Seasons 73421 actuator is used in HVAC systems to move the recirculation or air door inside the climate control housing. By controlling door position, it helps route air through the correct path for fresh-air or recirculation operation. It is listed for 2024 Dodge Hornet, 2023 Dodge Hornet, 2022-2023 Fiat 500X, 2021-2023 Jeep Renegade, 2018-2022 Jeep Compass, 2016-2021 Fiat 500X, 2015-2020 Jeep Renegade, 2016 Fiat 500, and 2016 Fiat 500L applications.

For buyers searching for a 2021-2023 Jeep Renegade HVAC recirculation door actuator, a 2018-2022 Jeep Compass air door actuator, or a 2022-2023 Fiat 500X blend/recirculation door actuator replacement, this part number 73421 matches the listed fitment data. It also cross-references Pioneer Automotive Industries 604022 for the same application.

What It Helps Fix

• Recirculation door stuck in one position
• Improper airflow routing through the HVAC case
• Loss of cabin air recirculation function
• Clicking or binding from a worn actuator gear set
• Temperature or vent mode control issues tied to door movement

Installation Notes and Tips

Verify the connector style, door linkage type, mounting ear layout, and terminal pin count before installation. Match the vehicle application exactly, since this actuator is listed for specific Dodge, Fiat, and Jeep HVAC systems. Confirm the existing actuator location and door orientation in the HVAC housing before replacement.

Quality Assurance

Four Seasons supplies HVAC replacement components for service applications, and this actuator is cataloged to the listed OE-style fitments for accurate replacement selection.