Dorman 973-502 HVAC Blower Motor Resistor Kit - Front

Overview of Dorman HVAC Blower Motor Resistor Kit 973-502

The Dorman 973-502 HVAC Blower Motor Resistor Kit is designed to restore proper blower motor function in select Ford trucks. This kit includes a blower motor resistor and a wiring harness, engineered to meet the electrical demands of Ford Excursion, F-250 Super Duty, and F-350 Super Duty models.

• Includes 1 blower motor resistor and 1 wiring harness
• Wiring harness length: 6 inches for easy installation
• Blade terminal type with 5 male terminals for secure connections
• Single female connector with 5 terminals ensures compatibility
• Two mounting holes for stable resistor placement
• Wiring harness included for a complete repair solution
• No mounting hardware or gasket/seal included

Detailed Product Description

The Dorman 973-502 blower motor resistor kit is specifically designed for HVAC electrical systems in Ford Excursion, F-250 Super Duty, and F-350 Super Duty trucks. The kit features a 6-inch wiring harness with a female connector and five male blade terminals, providing a reliable electrical connection to the blower motor resistor. The resistor itself mounts securely using two mounting holes, ensuring stable operation under vehicle vibrations. This kit does not include mounting hardware or gaskets, so existing hardware should be reused or sourced separately.

Common Applications and Issues Resolved

• Restores blower motor speed control in Ford Excursion and Super Duty trucks
• Fixes blower motor resistor failures causing no airflow or limited fan speeds
• Addresses electrical connection problems due to damaged wiring harnesses
• Eliminates intermittent blower motor operation or overheating resistor issues
• Replaces worn or corroded resistor components in HVAC systems

Installation Notes and Tips

• Verify compatibility with Ford Excursion, F-250 Super Duty, and F-350 Super Duty models before installation
• Use existing mounting hardware or procure appropriate fasteners as none are included
• Ensure all electrical connections are clean and secure to prevent future failures
• Disconnect the vehicle battery before installation to avoid electrical shorts
• Test blower motor operation after installation to confirm proper function

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM specifications for fit and function. The 973-502 blower motor resistor kit undergoes quality control testing to ensure reliable performance in Ford HVAC systems. Warranty coverage details should be confirmed through the original product documentation or authorized Dorman channels.