Universal Air SW9971C HVAC Blower Motor Resistor - Front

Reliable HVAC Blower Motor Resistor for Select GM and Isuzu Models

The Universal Air Blower Resistor SW9971C is designed to restore proper blower motor function in various Buick, Cadillac, Chevrolet, GMC, Isuzu, Oldsmobile, Pontiac, and Saab vehicles. This HVAC blower motor resistor ensures consistent fan speed control for your vehicle's heating and cooling system.

• Compatible with multiple GM and Isuzu models including Chevrolet Silverado, GMC Sierra, Cadillac Escalade, and more
• Part number SW9971C for precise identification and fitment
• Designed to regulate blower motor speeds effectively
• Direct replacement for factory blower motor resistor units
• Supports HVAC system performance and comfort

About the Universal Air Blower Resistor Product Line

The Blower Resistor line from Universal Air focuses on providing reliable HVAC blower motor resistors that meet or exceed OEM specifications. These resistors are engineered to maintain proper blower motor speed control, ensuring consistent airflow through the vehicle’s heating and cooling system. The SW9971C is part of this line, offering a dependable solution for restoring HVAC blower function in compatible vehicles.

Product Description and Vehicle Compatibility

The SW9971C HVAC blower motor resistor is engineered to fit a wide range of vehicles including Buick LaCrosse, Cadillac Escalade, Chevrolet Avalanche 1500 and 2500, GMC Sierra 1500 HD, 2500 HD, and 3500, Isuzu Ascender, Oldsmobile Bravada, Pontiac G8 and Grand Prix, Saab 9-7x, and more. This part regulates the electrical current to the blower motor, allowing for multiple fan speeds and proper climate control operation. It is a direct replacement part designed to restore the blower motor’s functionality when the original resistor fails.

Common Issues Resolved by the SW9971C Blower Resistor

• Blower motor only works on high speed or not at all
• Inconsistent or no airflow from HVAC vents
• Loss of multiple fan speed settings
• Intermittent blower motor operation
• HVAC system overheating due to resistor failure

Installation Notes and Tips

• Ensure vehicle ignition is off before installation
• Locate the blower motor resistor typically near the blower motor housing under the dashboard or glove box
• Disconnect the electrical connector carefully to avoid damage
• Replace the old resistor with the SW9971C, securing it properly to prevent vibration issues
• Test blower motor speeds after installation to confirm proper operation

Quality Assurance and Warranty Information

The Universal Air Blower Resistor SW9971C is manufactured to meet industry standards for durability and performance. While specific warranty details are not provided, Universal Air products typically undergo quality control testing to ensure reliable operation. Using this resistor helps maintain the HVAC system’s efficiency and extends the life of the blower motor assembly.