Dorman 973-518 HVAC Blower Motor Resistor Kit

Dorman 973-518 HVAC Blower Motor Resistor Kit

Dorman 973-518 is an HVAC blower motor resistor kit for vehicles with manual air conditioning controls. It includes the resistor and a replacement harness pigtail to address heat-related or corrosion-related failure at the original connector and resistor interface.

Use this kit when blower speeds stop working correctly or the connector shows signs of overheating. It is a direct-fit electrical repair solution for select Ford Escape, Ford Taurus, Mercury Mariner, and Mercury Sable applications.

Key Features

• Includes a blower motor resistor and wire harness pigtail
• Built for HVAC systems with manual air conditioning controls
• 4-wire, 4-terminal design with blade terminals
• Female connector with male terminals for proper electrical repair
• 6-inch wiring harness length
• Mounting hole quantity: 4
• Package contents: 1 blower motor resistor; 1 wire harness

Detailed Description

This Dorman blower motor resistor kit is made for repairing HVAC blower speed control issues caused by an overheated resistor or a corroded original connector. The included harness pigtail helps restore a secure electrical connection where the factory plug has been damaged by heat or age. Dorman 973-518 is a practical replacement for manual climate control systems in 2008-2009 Ford Escape, 2008-2009 Ford Taurus, 2008-2009 Mercury Mariner, 2008-2009 Mercury Sable, and 2010 Ford Escape and Mercury Mariner built to 11/18/09.

This part cross-references Dorman 973-518 for the same application and is also referenced by part numbers such as 4P1625 and 8G1Z19A706A. For buyers searching for a 2010 Ford Escape blower motor resistor kit or a 2008-2009 Mercury Mariner HVAC resistor repair with harness, this part number is a direct match to the listed applications.

Common Repair Uses

• Blower motor only works on certain fan speeds
• No airflow from the HVAC vents due to resistor failure
• Burned, melted, or corroded blower resistor connector
• Intermittent HVAC fan operation
• Heat-damaged wiring at the resistor plug

Installation Notes

Verify that the vehicle has manual air conditioning controls before ordering. Confirm connector style, terminal count, and mounting-hole layout against the original part before installation. Inspect the blower motor and surrounding wiring for heat damage, since a failed resistor can be caused by excess current draw or a damaged connector.

Quality Assurance

Dorman supplies this kit as an OE-style electrical repair part for the listed Ford and Mercury applications. The design combines the resistor and harness pigtail to support a cleaner repair at the damaged connection point.