Dorman 973-553 HVAC Blower Motor Resistor Kit

Overview of Dorman HVAC Blower Motor Resistor Kit 973-553

The Dorman 973-553 HVAC Blower Motor Resistor Kit is designed specifically for Ford Crown Victoria and Mercury Grand Marquis models. This kit includes a blower motor resistor and a wiring harness to ensure proper electrical connection and reliable HVAC blower motor operation.

• Includes 1 blower motor resistor and 1 wiring harness
• Wiring harness length: 6 inches for easy installation
• Blade terminal type with 4 male terminals
• Single female connector for secure connection
• Four mounting holes for stable resistor placement
• Wiring harness included for direct replacement
• No mounting hardware or gasket included

Detailed Product Description

The Dorman 973-553 blower motor resistor kit is engineered to restore proper blower motor function in select Ford and Mercury vehicles. The kit features a 6-inch wiring harness with blade terminals, providing four male terminals that connect to a single female connector. This configuration ensures a secure and reliable electrical connection. The resistor itself mounts using four mounting holes, allowing for a stable and vibration-resistant installation. While mounting hardware and gaskets are not included, the kit provides all necessary electrical components for a direct replacement of the blower motor resistor assembly.

Compatible Vehicles and Common Applications

This blower motor resistor kit is compatible with the following vehicles:

• Ford Crown Victoria
• Mercury Grand Marquis

It is designed to address HVAC blower motor issues such as:

• Intermittent or non-functioning blower motor speeds
• Blower motor stuck on one speed setting
• Loss of blower motor operation at certain speed levels
• Electrical connection failures within the blower motor circuit
• HVAC system overheating due to resistor failure

Installation Notes and Tips

• Ensure the vehicle’s battery is disconnected before installation to prevent electrical shorts
• Verify the wiring harness length and connector type match the vehicle’s existing setup
• Use the four mounting holes to securely fasten the resistor in place, avoiding loose connections
• Inspect the wiring harness for any damage before installation
• Test blower motor operation at all speed settings after installation

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM specifications for fit and function. The 973-553 blower motor resistor kit undergoes quality control testing to ensure reliable performance in Ford Crown Victoria and Mercury Grand Marquis vehicles. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in material and workmanship.