Dorman 973-078 HVAC Blower Motor Resistor

Reliable HVAC Blower Motor Resistor for Buick Century and Oldsmobile Cutlass Ciera

The Dorman 973-078 HVAC blower motor resistor is designed to restore proper blower motor function in select Buick and Oldsmobile models. Engineered to meet OEM specifications, this resistor ensures consistent airflow control for your vehicle's heating and cooling system.

• Compatible with Buick Century and Oldsmobile Cutlass Ciera models
• Features 2 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 one blower motor resistor and installation instructions

Technical Details and Specifications

The Dorman 973-078 blower motor resistor is designed with two bolt holes to ensure a stable and secure fit within the HVAC system. It features a rectangular female connector housing one connector, which accommodates four male blade terminals. This configuration supports efficient electrical flow and precise blower motor speed regulation. The resistor does not come with a wiring harness or mounting hardware, so these components must be sourced separately if needed. The included instructions provide guidance for proper installation.

Applications and Common Issues Addressed

This blower motor resistor is compatible with Buick Century and Oldsmobile Cutlass Ciera vehicles, making it a suitable replacement part for HVAC blower motor speed control problems. It is commonly used to resolve issues such as:

• Blower motor only working on one speed setting
• Intermittent or no airflow from the HVAC vents
• Complete failure of the blower motor resistor causing loss of blower function
• Overheating or electrical resistance faults within the blower motor circuit

Installation Notes and Tips

When installing the Dorman 973-078 blower motor resistor, ensure the vehicle's battery is disconnected to prevent electrical shorts. The resistor mounts using two bolts, so verify the mounting surface is clean and free of debris. Connect the rectangular female connector securely to the vehicle’s wiring harness, confirming all four male blade terminals are properly engaged. Since wiring harness and mounting hardware are not included, retain original components or acquire replacements as necessary. Follow the included instructions carefully to complete installation.

Quality Assurance and Warranty Information

Dorman parts are manufactured to meet or exceed OEM standards, providing reliable performance and durability. The 973-078 blower motor resistor undergoes quality control testing to ensure proper fit and function in compatible Buick Century and Oldsmobile Cutlass Ciera models. Warranty coverage details can be obtained from the product documentation or Dorman directly, supporting confidence in your replacement part.