Dorman 973-003 HVAC Blower Motor Resistor - Front

Reliable HVAC Blower Motor Resistor for GM Trucks and SUVs

The Dorman 973-003 HVAC blower motor resistor is designed to restore proper blower motor function in select Cadillac, Chevrolet, and GMC vehicles. Engineered with a blade terminal type, this resistor ensures a secure electrical connection for consistent HVAC performance.

• Compatible with Cadillac Escalade and Yukon models
• Fits Chevrolet C1500, C2500, C3500, Suburban, and Tahoe vehicles
• Suitable for GMC K1500, K2500, K3500, Yukon XL 1500, and Yukon XL 2500
• Blade terminal type for reliable electrical contact
• Includes blower motor resistor and installation instructions
• Mounting hardware not included

Product Details and Specifications

The Dorman 973-003 blower motor resistor is a direct replacement part designed specifically for HVAC systems in various GM trucks and SUVs. Its blade terminal type allows for easy connection to the vehicle’s wiring harness, ensuring stable current flow to the blower motor. This resistor is essential for controlling the fan speed settings in your HVAC system, providing multiple speed options for heating and cooling. The package includes the blower motor resistor and detailed instructions to assist with installation, although mounting hardware is not provided.

Compatible Vehicles and Applications

This blower motor resistor is compatible with a range of General Motors vehicles, including:

• Cadillac Escalade and Yukon series
• Chevrolet C1500, C1500 Suburban, C2500, C2500 Suburban, C3500, Suburban 1500, Suburban 2500, and Tahoe
• GMC K1500, K1500 Suburban, K2500, K2500 Suburban, K3500, Yukon XL 1500, and Yukon XL 2500

Common HVAC Issues Addressed

• Blower motor only works on one speed or not at all
• Inconsistent fan speeds in heating and cooling modes
• Intermittent blower motor operation
• HVAC blower motor resistor failure symptoms
• Loss of multiple fan speed settings

Installation Notes and Tips

• Ensure the vehicle’s ignition is off before installation
• Disconnect the battery to prevent electrical shorts
• Locate the blower motor resistor near the HVAC blower motor housing
• Use the included instructions for proper wiring and mounting guidance
• Mounting hardware is not included; reuse existing hardware or source compatible fasteners

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 973-003 blower motor resistor undergoes rigorous quality control to ensure durability and reliable performance in your Cadillac, Chevrolet, or GMC vehicle. Warranty coverage details can be obtained from the product documentation or Dorman directly.