Dorman 973-444 HVAC Blower Motor Resistor Kit - Front

Dorman HVAC Blower Motor Resistor Kit 973-444

Dorman 973-444 is an HVAC blower motor resistor kit that replaces a failed original resistor and the damaged harness pigtail that often goes with it. It is built for vehicles with manual climate control systems where blower speeds stop working after heat damage or connector corrosion.

Key Features

• HVAC blower motor resistor kit with resistor and wire harness pigtail
• Female connector with male blade terminals for a direct electrical repair
• 4-wire harness with 6-inch wiring harness length
• 4 mounting holes and 4 terminals for the specified application
• Designed for manual air conditioning or manual climate control systems on select Ford, Lincoln, and Mercury vehicles
• Part number 973-444 for service matching and catalog lookup

Detailed Description

This Dorman blower motor resistor kit is used to restore blower motor speed control when the original resistor overheats, the connector becomes corroded, or the harness is heat damaged. It is a practical repair for select Ford F-150, Ford Expedition, Lincoln Navigator, Ford Escape, and Mercury Mariner applications, as well as other listed vehicles with manual HVAC controls. The kit includes the resistor and a replacement harness pigtail to address both the electrical component and the connector side of the failure. Cross-reference part numbers include 3F2Z18591AA and RU440 for the same application.

What It Is Used For

• Restoring lost blower fan speeds
• Repairing melted or overheated HVAC resistor connectors
• Fixing intermittent cabin airflow caused by corroded terminals
• Replacing a failed resistor in manual climate control systems
• Addressing HVAC electrical faults on select Ford, Lincoln, and Mercury models

Installation Notes and Tips

• Verify vehicle year, make, model, and HVAC control type before installation.
• Compatible With 2005-2014 Ford F-150, N/A; includes connector; wo/Automatic Temperature Control (ATC).
• Compatible With 2007-2017 Ford Expedition, Front; includes connector; w/Manual Air Conditioning Controls.
• Compatible With 2008-2012 Ford Escape, N/A; includes connector; w/Manual Air Conditioning Controls.
• Inspect the blower motor connector, terminals, and surrounding wiring for heat damage before installing the new resistor.
• Confirm the mounting pattern and terminal orientation match the original part.

Quality Assurance

Dorman supplies OE-style replacement electrical components for service repair applications. This part number 973-444 is built to replace the original resistor and harness assembly on the listed vehicles, helping restore proper blower motor operation after connector or resistor failure.