Dorman 973-502 HVAC Blower Motor Resistor Kit - Front
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Dorman

Dorman 973-502 HVAC Blower Motor Resistor Kit - Front

Brand Dorman 973-502
Connector Gender Female
Connector Quantity 1
Gasket or Seal Included No
Mounting Hardware Included No
Mounting Hole Quantity 2
Package Contents 1 Blower Motor Resistor; 1 Wire Harness
Terminal Gender Male
Terminal Quantity 5
Terminal Type Blade
Wire Quantity 5
Wiring Harness Included Yes
Wiring Harness Length 6
Fits Ford · 10 vehicles

Resistor kit. Includes a resistor and harness pigtail for a complete electrical repair.

Harness included. Comes with a wire harness pigtail to simplify replacement.

Blade terminals. Female connector with male blade terminals for a secure electrical connection.

Cross-references 2C3Z19E624AA, 4P1744 and JA1866 for the same application. See all 5.

$149.93Free shipping
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Free returns within 60 days if it doesn't fit when fitment is verified.
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Dorman 973-502 HVAC Blower Motor Resistor Kit

Dorman 973-502 is an HVAC blower motor resistor kit that replaces an overheated or corroded original resistor and restores blower speed control on select Ford trucks and SUVs. It includes the resistor and a replacement harness pigtail for a direct electrical repair on vehicles with automatic air conditioning controls.

Key Features

  • HVAC blower motor resistor kit for blower speed circuit repair
  • Includes a replacement wire harness pigtail for connector damage repair
  • Blade terminal design with a female connector and male terminals
  • 5-wire harness configuration with a 6-inch harness length
  • 2 mounting holes for secure installation
  • Direct replacement for select Ford F-250 Super Duty, Ford F-350 Super Duty, and Ford Excursion applications
  • Cross-references OE and aftermarket numbers including 2C3Z19E624AA and RU775

Detailed Description

This Dorman blower motor resistor kit is built for HVAC systems that use automatic air conditioning controls and need repair after heat damage, corrosion, or connector wear. The resistor and harness pigtail address common electrical failure points in the blower motor circuit, helping restore proper fan speed operation in the cabin HVAC system. Dorman 973-502 is a practical replacement for Ford F-250 Super Duty, Ford F-350 Super Duty, and Ford Excursion models listed below, including front-mounted Excursion applications with connector replacement needs.

This part cross-references OE and aftermarket numbers such as 2C3Z19E624AA and RU775 for the same application.

What It Helps Fix

  • Blower motor only working on certain speeds
  • No cabin airflow from the HVAC blower motor
  • Intermittent fan operation caused by a damaged resistor circuit
  • Heat-damaged or corroded electrical connector at the resistor
  • Electrical resistance issues in the HVAC blower control circuit

Installation Notes and Tips

  • Verify the vehicle uses automatic air conditioning controls before ordering.
  • Inspect the blower resistor connector and surrounding wiring for heat damage before installation.
  • Confirm the mounting location and connector style match the original part.
  • Use the existing mounting points; mounting hardware is not included.

Quality Assurance

Dorman supplies replacement electrical and HVAC components engineered to restore original system function on specific vehicle applications. This part is listed for 2002-2007 Ford Excursion, 2005-2007 Ford F-250 Super Duty, and 2005-2007 Ford F-350 Super Duty configurations shown in the fitment data.

Vehicle Fitment

  • Fits 2005-2007 Ford F-250 Super Duty, N/A, Automatic Air Conditioning Controls
  • Fits 2005-2007 Ford F-350 Super Duty, N/A, Automatic Air Conditioning Controls
  • Fits 2002-2005 Ford Excursion, Front, Includes Connector; Automatic Air Conditioning
This part fits 10 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2007FordF-250 Super DutyN/AAutomatic Air Conditioning Controls
2007FordF-350 Super DutyN/AAutomatic Air Conditioning Controls
2006FordF-250 Super DutyN/AAutomatic Air Conditioning Controls
2006FordF-350 Super DutyN/AAutomatic Air Conditioning Controls
2005FordExcursionFrontIncludes Connector; Automatic Air Conditioning
2005FordF-250 Super DutyN/AAutomatic Air Conditioning Controls
2005FordF-350 Super DutyN/AAutomatic Air Conditioning Controls
2004FordExcursionFrontIncludes Connector; Automatic Air Conditioning
2003FordExcursionFrontIncludes Connector; Automatic Air Conditioning
2002FordExcursionFrontIncludes Connector; Automatic Air Conditioning
Directly replaces or cross-references 5 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
2C3Z19E624AA4P1744JA1866RU775RU1464