Standard Ignition RU-46 HVAC Blower Motor Resistor

Reliable HVAC Blower Motor Resistor for Buick, Oldsmobile, Pontiac

The Standard Ignition RU-46 HVAC blower motor resistor is designed to restore proper blower motor speed control in select Buick, Oldsmobile, and Pontiac vehicles. Engineered for durability and precise fitment, this resistor ensures consistent HVAC performance for models like the Buick LeSabre, Oldsmobile 88, and Pontiac Bonneville.

• Attachment method: Screw for secure installation
• Female rectangular connector with 1 cavity
• Compatible with 3-5 speed blower motors
• Four male blade terminals for reliable electrical connection
• No wiring harness or mounting brackets included

Product Details and Specifications

The RU-46 blower motor resistor from Standard Ignition features a screw attachment method, allowing for a firm and stable mounting within the HVAC system. It includes a female rectangular connector designed with one cavity, matching the original equipment specifications for seamless integration. This resistor supports blower motors with 3 to 5 speed settings, making it suitable for various HVAC configurations found in Buick, Oldsmobile, and Pontiac vehicles. The four male blade terminals provide a secure electrical interface, ensuring consistent blower motor operation without interruption. Note that this part does not include a wiring harness or mounting brackets, so it is intended for direct replacement of the resistor component only.

Compatible Vehicles and Common Applications

This HVAC blower motor resistor is compatible with multiple GM models, including:

• Buick LeSabre, Park Avenue, and LSS
• Oldsmobile 88 and 98
• Pontiac Bonneville and Grand Prix

It is designed to address blower motor speed control issues such as inconsistent fan speeds or blower failure in these vehicles.

Common Issues Resolved by RU-46 Resistor

• Blower motor only works on high speed
• Intermittent blower motor operation
• Loss of multiple fan speed settings
• HVAC blower motor resistor failure symptoms
• Inconsistent airflow from vents

Installation Notes and Tips

Installation of the Standard Ignition RU-46 resistor requires removal of the old resistor from the HVAC housing, typically secured by screws. Ensure the connector is properly aligned with the female rectangular port and that the four blade terminals engage fully. Since no wiring harness or mounting brackets are included, reuse existing hardware and wiring. It is recommended to disconnect the vehicle battery before installation to prevent electrical shorts. Verify blower motor operation across all speeds after installation to confirm proper function.

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM specifications, providing reliable performance and fitment. The RU-46 blower motor resistor undergoes rigorous quality control to ensure durability and consistent operation. This part is backed by Standard Ignition's limited warranty, covering defects in materials and workmanship under normal use conditions.