Help keep your cabin fan speeds under control with the Standard Ignition RU-740, a direct-fit 2007-2015 Mazda CX-9 blower motor resistor that also fits the 2018-2019 Infiniti Q70 and the 2015-2019 Infiniti Q70L, all engines. It is a direct-fit replacement for the listed applications.
This hvac blower motor resistor works with the climate controls to set the speed of the front blower motor, which moves air through the heating and A/C system to the cabin vents.
Signs a 2007-2015 Mazda CX-9 blower resistor may need replacing include a fan that runs only on its highest setting, speed settings that no longer respond, or no blower output at all. A switch, wiring or the blower motor itself can cause the same symptoms, so diagnose the cause first. If the resistor is the cause, the RU-740 replaces it.
What does the RU-740 blower motor resistor do?
It works with the climate controls to set the speed of the front blower motor, which pushes air through the heating and A/C system to the cabin vents.
Is the RU-740 the right 2008 Mazda CX-9 blower motor resistor?
Yes. The 2008 model year falls within its 2007-2015 Mazda CX-9 listing for all engines. The "Vehicles it fits" section shows the full fitment chart.
Which position is this resistor for?
It is listed as the front blower motor resistor for its applications.
How many resistors does my vehicle need?
Each listed application uses one resistor.
What should I know before installing it?
Disconnect the battery and follow the vehicle service information for access and removal steps. Check the electrical connector for damage before you plug in the new resistor.
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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.
