Four Seasons 73049 HVAC Mode Door Actuator - Auxiliary

Four Seasons 73049 HVAC Air Door Actuator

The Four Seasons 73049 is an HVAC mode door actuator for vehicles with an auxiliary air door setup. Built with a male door linkage, 4 mounting ears, and an 8-pin terminal layout, it is specified for select Ford Expedition, Lincoln Navigator, and Lincoln Blackwood applications with a D-shaped shaft where noted.

Key Features

• Four Seasons Air Door Actuator line for HVAC mode door control
• Male door linkage for the specified door connection style
• 4 mounting ears for secure in-dash installation
• 8 terminal pins for the listed electrical interface
• Direct-fit application coverage for select Ford Expedition and Lincoln Navigator models
• Part number 73049 for accurate catalog matching

Product Details

This HVAC mode door actuator is used to move the air door inside the climate control system, directing airflow to the proper outlet positions. It is listed for 2003-2004 Ford Expedition auxiliary applications with a D-shaped shaft, 2003-2004 Lincoln Navigator auxiliary applications with a D-shaped shaft, 2002-2003 Lincoln Blackwood console applications, and 2002 Ford Expedition and 2002 Lincoln Navigator auxiliary applications from 3/02 with a D-shaped shaft. Four Seasons 73049 is also cross-referenced to Dayco 73049 for the same application.

What It Helps Address

• Airflow stuck on one vent position
• Inconsistent mode changes between defrost, panel, and floor outlets
• HVAC door movement problems caused by a worn actuator
• Climate control response issues in the auxiliary system
• Noise or binding from a failing air door actuator

Installation Notes

Verify the connector style, terminal count, mounting ear layout, and door linkage before installation. Confirm the vehicle build date where noted, especially 2002 Ford Expedition and 2002 Lincoln Navigator applications from 3/02. Match the D-shaped shaft and console or auxiliary position exactly to the vehicle listing for proper fitment. Part number 73049 should be checked against the original unit before replacement.

Quality Assurance

Four Seasons catalogs this component within its Air Door Actuator product line for HVAC service applications. Use the listed fitment details and interchange references to confirm the correct replacement for your Ford Expedition, Lincoln Navigator, or Lincoln Blackwood HVAC system.