Standard Ignition HVAC Blower Motor Resistor P/N:RU-870
Help bring back every fan speed with the Standard Ignition RU-370, a 2002-2007 Mitsubishi Lancer blower motor resistor that is also a direct-fit replacement for the 2003-2006 Mitsubishi Outlander. A blower motor resistor sets the blower motor's speed by regulating the current that reaches it, which gives your A/C and heater their different fan settings. For engine details, see the Buyer's Guide tab.
Signs this HVAC blower motor resistor may need replacing include a fan that works on only some speed settings, runs only on high, or won't change speed. A switch, wiring or the blower motor itself can cause the same symptoms, so diagnose the cause first. If the resistor is at fault, the RU-370 replaces it.
Interchange: RU1063 · JA1407 · BR274 · MR568591
This part cross-references / interchanges with the following part numbers:
What does a blower motor resistor do?
It regulates the current sent to the blower motor so the A/C and heater fan can run at different speeds. The RU-370 is designed to restore that variable speed control.
Is the RU-370 also a 2003-2006 Mitsubishi Outlander blower motor resistor?
Yes. It is a direct-fit replacement for the 2003-2006 Mitsubishi Outlander. See the Buyer's Guide tab for engine details.
What are signs the blower motor resistor may be failing?
Signs include a fan that works on only some speed settings, runs only on high, or won't change speed. A switch, wiring or the motor can cause these too, so diagnose first.
Why does it use copper electrical connectors?
Standard Ignition uses premium copper connectors for more precise resistance values. This is intended to improve resistor performance and extend part life.
How is the RU-370 installed?
It is a direct-fit replacement for the listed applications. Follow the vehicle's service information for access and removal steps, and disconnect the battery before working on electrical parts.
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.