Dorman 973-551 HVAC Blower Motor Resistor Kit

Reliable HVAC Blower Motor Resistor Kit for Chevrolet, GMC, and Oldsmobile

The Dorman 973-551 HVAC blower motor resistor kit is designed to restore proper blower motor function in select Chevrolet, GMC, and Oldsmobile vehicles. This kit includes a wiring harness and connectors engineered to ensure a secure and efficient electrical connection for your HVAC system.

• Compatible with Chevrolet Blazer, GMC Jimmy, and Oldsmobile Bravada models
• Includes blower motor resistor, wiring harness with 16-inch length, and 4 butt connectors
• Features 7 wires, 3 connectors, and 6 terminals with blade terminal type
• Wiring harness and gasket/seal included for a complete installation
• Connectors and terminals designed with male and female configurations for proper fit
• Mounting hardware not included; 3 mounting holes available for secure attachment

Product Details and Specifications

The Dorman 973-551 blower motor resistor kit is engineered to meet the electrical requirements of your vehicle's HVAC system. The wiring harness measures 16 inches in length, providing adequate reach for installation within the blower motor assembly. The kit includes three connectors and six terminals, utilizing blade terminal types for reliable electrical contact. Both male and female terminal genders are included to ensure compatibility with existing vehicle wiring. A gasket or seal is also provided to maintain system integrity and prevent moisture intrusion. While mounting hardware is not included, the resistor features three mounting holes to facilitate secure installation.

Common Applications and Problem Resolution

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

• Chevrolet Blazer
• GMC Jimmy
• Oldsmobile Bravada

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

• Blower motor only working on high speed
• Intermittent blower motor operation
• Complete loss of blower motor function
• Inconsistent airflow from HVAC vents
• Electrical connection failures within the blower motor circuit

Installation Notes and Tips

Before installation, disconnect the vehicle battery to prevent electrical shorts. The included wiring harness simplifies the replacement process by providing pre-terminated connectors and terminals. Ensure the gasket or seal is properly seated to avoid moisture damage. Use the existing mounting holes to secure the resistor firmly in place. Verify all electrical connections are tight and free of corrosion before reassembling the HVAC housing.

Quality Assurance and Warranty Information

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 973-551 blower motor resistor kit undergoes rigorous quality control to ensure reliable performance. This product is backed by Dorman's limited warranty, providing coverage against defects in material and workmanship under normal use.