Standard Ignition HVAC Blower Motor Resistor P/N:RU905
Regain control of your fan speeds with the Standard Ignition HVAC Blower Motor Resistor (RU1053), a direct-fit replacement for the 2017-2023 Chevrolet Bolt EV and 2022-2023 Chevrolet Bolt EUV. The resistor sets the current sent to the blower motor so the A/C and heater fan can run at each of its lower speed settings — if the original resistor has failed, this replaces it and restores that variable-speed control.
Common signs the original resistor may need replacing include a blower that only works on the highest speed, or one or more fan speeds that no longer function. Diagnose the cause before replacing, since blower faults can also stem from the switch, motor, or wiring.
Interchange: RU1706 · BMRA271 · BR999 · 84496889
This part cross-references / interchanges with the following part numbers:
What does this blower motor resistor do?
It sets the current supplied to the HVAC blower motor, allowing the A/C and heater fan to run at its different lower speed settings.
Which vehicles does the RU1053 fit?
It's a direct-fit replacement for the 2017-2023 Chevrolet Bolt EV and 2022-2023 Chevrolet Bolt EUV. See the Buyer's Guide tab to confirm your vehicle.
Why does my blower only work on high speed?
A failed resistor is a common cause, since it feeds the lower speeds. If the resistor is the cause, this part replaces it; verify the switch, motor, and wiring too.
What connectors does this resistor use?
It uses premium copper electrical connectors, which help provide more precise resistance values for consistent performance and longer part life.
What numbers does this part interchange with?
It replaces RU1706, BMRA271, BR999, and 84496889.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.