Four Seasons 73155 HVAC Blend Door Actuator

Four Seasons 73155 Air Door Actuator

The Four Seasons 73155 Air Door Actuator is an HVAC blend door actuator built for vehicles that use automatic temperature control. It helps regulate airflow direction and temperature blend inside the climate control system, supporting consistent cabin comfort in Jeep Grand Cherokee and Jeep Grand Wagoneer applications.

Part of the Four Seasons Air Door Actuator line, this HVAC component is focused on precise door movement and electrical control for automatic climate systems. The 73155 is a direct-fit style replacement for select Jeep HVAC setups that use a female door linkage, 3 mounting ears, and a 5-pin terminal configuration.

Key Features

• HVAC blend door actuator for automatic climate control systems
• Female door linkage for the specified HVAC door connection
• 3 mounting ears for secure actuator attachment
• 5 terminal pins for the electrical interface
• Fits select 1993-1998 Jeep Grand Cherokee HVAC systems with ATC
• Fits 1993 Jeep Grand Wagoneer automatic A/C equipped vehicles
• Four Seasons part number 73155 for application matching

Detailed Description

The Four Seasons 73155 is an HVAC air door actuator used to move the blend door inside the climate control housing, helping the system direct air through the proper temperature path. For Jeep Grand Cherokee models from 1993-1998 with Automatic Temperature Control, and 1993 Jeep Grand Wagoneer vehicles with automatic A/C, this actuator supports the function of the HVAC system when the original unit is worn or no longer responding correctly. This part also cross-references Dayco 73155 for the same application.

What It Helps Solve

• Temperature stuck on hot or cold
• Airflow not changing between vent, floor, or defrost modes
• Clicking or repeated movement from a failing HVAC actuator
• Inconsistent cabin temperature control in automatic climate systems
• Loss of proper blend door response in Jeep Grand Cherokee and Jeep Grand Wagoneer HVAC units

Installation Notes and Tips

Verify the connector style, door linkage type, mounting ear count, and terminal pin count before installation. Confirm that the vehicle is equipped with Automatic Temperature Control or automatic A/C as listed in the fitment data. Access to the HVAC housing may require removal of interior trim panels or related components, so compare the original actuator to the replacement before final installation.

Quality Assurance

Four Seasons supplies HVAC replacement components for climate control service applications, and the 73155 is built to match the specified actuator configuration for the listed Jeep vehicles. Confirm fitment by year, model, and HVAC system type before ordering.