Take charge of rear blower fan speeds with the Standard Ignition Blower Motor Resistor RU-825, a rear-position resistor that regulates current to the A/C and heater blower motor so it can run at more than one speed. It fits many vehicles, among them the 2021-2025 Ford F-650, 2021-2025 Ford F-750 and 2009-2019 Ford Flex. See the Buyer's Guide tab for the full application list.
If a failed resistor is why your blower runs on only some settings or not at all, this HVAC blower motor resistor replaces it. It is designed to restore variable blower speed control, helping optimize HVAC performance and passenger comfort.
Signs this part may need replacing include a blower that works on only some speed settings, a fan that won't change speed, or no rear airflow at all. A switch, wiring or the blower motor itself can cause similar symptoms, so diagnose the cause before replacing.
Interchange: RU1514 · JA1850 · BR725 · AE9Z19E624B
This part cross-references / interchanges with the following part numbers:
What does a blower motor resistor do?
It changes how much current reaches the blower motor so the A/C and heater fan can run at different speeds. RU-825 is a rear-position unit.
Is this the right Ford Flex blower motor resistor for a 2009-2019 Ford Flex?
Yes. RU-825 is listed for the 2009-2019 Ford Flex in the rear position. See the Buyer's Guide tab for every listed application.
What are signs the blower resistor may need replacing?
Possible signs include a blower that runs on only some settings, won't change speed, or gives no rear airflow. A switch, wiring or motor fault can cause similar symptoms, so diagnose before replacing.
What does the built-in fuse do?
It is designed to protect against resistor failure from an excessive electrical current surge, which helps protect the blower motor and other components from damage.
What part numbers does RU-825 interchange with?
It cross-references RU1514, JA1850, BR725 and AE9Z19E624B.
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.
