Four Seasons 73351 HVAC Mode Door Actuator

Four Seasons 73351 HVAC Air Door Actuator

The Four Seasons Air Door Actuator 73351 is an HVAC mode door actuator built for panel and main air door control in select Jeep applications. It uses an arm-style door linkage and a 2-ear mounting design to match the original actuator layout in the vehicle HVAC system.

Compatible With 2003-2006 Jeep TJ and 2003-2006 Jeep Wrangler HVAC mode door applications, this Four Seasons HVAC Air Door Actuator supports proper air distribution through the dash vents, defrost, and floor outlets. The Four Seasons Air Door Actuator line focuses on direct-fit HVAC replacement parts for common climate control repairs.

Key Features

• Part number 73351 HVAC mode door actuator
• Arm-style door linkage for HVAC air door operation
• 2 mounting ears for OE-style attachment points
• Used in panel and main air door positions
• Direct replacement format for select Jeep HVAC systems

Detailed Description

This HVAC mode door actuator is used to move the internal air door that directs airflow inside the heating and air conditioning case. When the actuator responds correctly, the system can switch between vent, panel, floor, and defrost settings as commanded by the dash controls. Part number 73351 is listed for 2003-2006 Jeep TJ and 2003-2006 Jeep Wrangler models, making it a focused solution for Jeep TJ and Jeep Wrangler HVAC repair work.

This part cross-references 604934 and 5073181AA for the same application.

What It Helps Fix

• Airflow stuck on one outlet setting
• No response when changing HVAC mode selections
• Inconsistent vent, floor, or defrost direction
• Clicking or binding from the HVAC actuator area
• Loss of proper dash airflow control in Jeep TJ and Jeep Wrangler models

Installation Notes and Tips

Verify the original actuator style, linkage arm, and mounting ear layout before installation. Confirm the HVAC mode door moves freely in the case, since a binding door can overload the replacement actuator. After installation, cycle the climate controls through each mode setting to confirm correct airflow routing.

Quality Assurance

Four Seasons supplies HVAC replacement components for service applications, and this actuator is built to match the listed fitment and mounting style for the specified Jeep vehicles.