Dorman 973-072 HVAC Blower Motor Resistor - Front

Reliable HVAC Blower Motor Resistor for Select GM Vehicles

The Dorman 973-072 HVAC blower motor resistor is designed to restore proper blower motor function in various Buick, Cadillac, Oldsmobile, and Pontiac models. Engineered to meet OEM specifications, this resistor ensures consistent airflow control for your vehicle's heating and cooling system.

• Compatible with Buick 60 Special, Cadillac Allante, DeVille, Fleetwood, and Seville models
• Fits Oldsmobile 98, Delta 88, and Reatta
• Also compatible with Pontiac Bonneville, LeSabre, Park Avenue, Riviera, and Toronado
• Features 3 bolt holes for secure mounting
• Includes 2 female square connectors with both blade and aspa terminal types
• Equipped with 2 male terminals for reliable electrical connection
• No wiring harness or mounting hardware included

Product Details and Specifications

The Dorman 973-072 blower motor resistor is constructed with durable materials to withstand the demands of automotive HVAC systems. It features three bolt holes for stable installation and two connectors shaped square (cuadrado) with female gender, ensuring compatibility with factory wiring harnesses. The resistor terminals include both blade and aspa types, with a total of four terminals (two male and two female) to maintain proper electrical flow. This part does not include a wiring harness or mounting hardware, so existing components must be reused during replacement.

Common Applications and Problem Resolution

This blower motor resistor is used to regulate the speed of the HVAC blower motor in select GM vehicles. It addresses issues such as:

• Blower motor only working on high speed
• Intermittent or no airflow from the HVAC vents
• Inconsistent blower speeds or failure to adjust fan speed
• Electrical resistance failure causing HVAC system malfunctions
• Overheating or burning smell from the blower motor area

Installation Notes and Tips

When installing the Dorman 973-072 blower motor resistor, ensure the vehicle’s ignition is off and the battery is disconnected to prevent electrical shock. Retain the original mounting hardware and wiring harness for reinstallation, as these are not included with the part. Verify connector orientation and terminal types to ensure a secure and proper fit. Proper torque on the three mounting bolts will prevent vibration and maintain electrical contact.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 973-072 blower motor resistor undergoes rigorous quality control to ensure durability and reliable performance in your Buick, Cadillac, Oldsmobile, or Pontiac vehicle. Warranty coverage details can be obtained from the product packaging or Dorman’s official documentation.