Dorman - OE Solutions HVAC Blower Motor Resistor Kit P/N:973-504
Replace an overheated or corroded blower motor resistor with the Dorman hvac blower motor resistor kit, part number 973-951, which pairs a new front resistor with a harness pigtail. It fits many vehicles, among them the 2002-2007 Ford Explorer, 2003-2006 Ford Expedition and 2007 Ford Explorer Sport Trac, as a direct replacement for the original equipment. See the "Vehicles it fits" section for the full list and engine details.
The blower motor resistor controls how much current reaches the blower motor, which lets the fan run at its selectable speeds. If the fan works only on some settings or not at all, or the resistor's connector shows heat damage or corrosion, the resistor may need replacing. Other components can cause the same signs, so diagnose the circuit before you replace parts.
Interchange: 4P1366 · RU1075 · 1L2Z19A706AA · 2L2Z19A706AA · 4L2Z19A706AA · 20301 · RU381 · JA1504
This part cross-references / interchanges with the following part numbers:
What does this blower motor resistor do?
It controls the current reaching the front HVAC blower motor so the fan can run at its different speed settings. This kit replaces both the resistor and its harness pigtail.
What comes in the Dorman blower motor resistor kit?
Each kit includes a blower motor resistor and a harness pigtail. Dorman considers the pigtail essential for most repairs.
What are signs the blower motor resistor may need replacing?
Common signs include a blower that runs only on some speeds or only on high, a fan that won't run at all, or a burnt or corroded connector. Other parts can cause these symptoms, so diagnose the circuit first.
Does it fit the 2002-2007 Ford Explorer?
Yes. It is listed for the 2002-2007 Ford Explorer, and also for the 2003-2006 Ford Expedition and the 2007 Ford Explorer Sport Trac. The "Vehicles it fits" section has the full list.
Why does the kit include a harness pigtail?
Dorman says the pigtail is essential for most repairs, so the kit supplies a new connector harness along with the resistor. Follow the vehicle's service information when installing it.
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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.