Dorman 973-073 HVAC Blower Motor Resistor

Reliable HVAC Blower Motor Resistor for Buick, Chevrolet, and Oldsmobile

The Dorman 973-073 HVAC blower motor resistor is designed to restore proper blower motor function in select Buick, Chevrolet, and Oldsmobile vehicles. Engineered to meet OEM specifications, this resistor ensures consistent airflow control for your vehicle's heating and cooling system.

• Compatible with Buick Caprice, Chevrolet Impala, Custom Cruiser, and Oldsmobile Roadmaster models
• Features 3 bolt holes for secure mounting
• Equipped with a single rectangular female connector
• Includes 4 male blade terminals for reliable electrical connection
• Does not include wiring harness or mounting hardware
• Package contains the blower motor resistor and installation instructions

Technical Details and Specifications

The Dorman 973-073 blower motor resistor is designed with a 3-bolt hole configuration to ensure a stable and secure fit within the HVAC system. It features a rectangular female connector housing with four male blade terminals, providing a dependable electrical interface. This part does not come with a wiring harness or mounting hardware, so existing components should be reused during installation. The resistor is engineered to regulate blower motor speeds effectively, maintaining optimal climate control performance in your vehicle.

Compatible Vehicles and Applications

This blower motor resistor is compatible with specific models from Buick, Chevrolet, and Oldsmobile, including the Buick Caprice, Chevrolet Impala and Custom Cruiser, as well as the Oldsmobile Roadmaster. Using the correct resistor like the Dorman 973-073 ensures proper blower motor operation and prevents issues related to inconsistent airflow or blower speed control.

Common Issues Resolved by This Blower Motor Resistor

• Intermittent or non-functioning blower motor speeds
• Blower motor stuck on a single speed setting
• HVAC system failing to adjust airflow properly
• Overheating or electrical resistance problems in blower motor circuit
• Loss of blower motor control in Buick Caprice, Chevrolet Impala, or Oldsmobile Roadmaster

Installation Notes and Tips

Before installation, verify that the existing wiring harness and mounting hardware are in good condition, as these are not included with the resistor. Disconnect the vehicle battery to prevent electrical shorts. Align the resistor using the 3 bolt holes and secure it firmly. Connect the rectangular female connector to the blower motor wiring harness, ensuring the four male blade terminals are properly seated. Follow the included instructions carefully to avoid damage to the HVAC system components.

Quality Assurance and Warranty Information

Dorman parts are manufactured to meet or exceed OEM standards, providing reliable performance and durability. The 973-073 blower motor resistor undergoes quality testing to ensure consistent operation within the HVAC system. Please refer to Dorman's warranty policy for specific coverage details related to this part.