Help bring back the full range of fan speeds with the Dorman HVAC blower motor resistor kit, part number 973-414, which pairs a new blower motor speed resistor with a harness pigtail to replace an overheated or corroded original equipment resistor. It fits many vehicles, among them the 1997-2003 Ford F-150, 2001-2007 Ford Escape and 1994-2004 Ford Mustang. See the "Vehicles it fits" section for the full list and engine details.
The blower motor resistor provides the lower fan speeds by reducing the voltage sent to the blower motor. When it fails, the fan may run only on high, skip certain speeds or stop working. Overheating or corrosion can also affect the wiring connector, so the included harness pigtail lets you replace the connector along with the resistor. It is listed for front and rear blower positions, depending on the vehicle. A blower motor, switch or wiring fault can cause similar symptoms, so diagnose the cause before replacing.
- Direct replacement: this resistor and harness kit is designed to take the place of the original equipment on the listed applications.
- Two-piece kit: each kit includes a resistor and a harness pigtail, which most repairs call for.
- OE-style performance: made to perform like the original equipment. It helps return normal HVAC operation when a failed resistor is the cause.
- Quality backing: supported by a USA-based team of engineers and quality specialists.
Interchange: BMR006 · 4P1367 · RU1076 · 2040122 · 4L3Z19A706AA · F4ZZ19A706A · 20302 · 2BMR0293 · RU382 · JA1505
This part cross-references / interchanges with the following part numbers:
BMR006, 4P1367, RU1076, 2040122, 4L3Z19A706AA, F4ZZ19A706A, 20302, 2BMR0293, RU382, JA1505
Frequently Asked Questions
What does a blower motor resistor do?
It reduces the voltage sent to the blower motor so the heater and A/C fan can run at the lower speed settings.
What comes in the Dorman blower motor resistor kit?
Each kit includes a blower motor speed resistor and a harness pigtail, so the wiring connector can be replaced along with the resistor.
What are signs the blower motor resistor may need replacing?
Common signs include a fan that works only on high, missing speed settings, a blower that won't run, or a melted or corroded connector. Diagnose the cause first, as a motor, switch or wiring fault can act similarly.
Does this resistor kit fit the 1997-2003 Ford F-150?
It is listed for the 1997-2003 Ford F-150, as well as the 2001-2007 Ford Escape and 1994-2004 Ford Mustang. Check the "Vehicles it fits" section to confirm your vehicle.
Is it a direct replacement for the original resistor?
Yes. Dorman designed this resistor and harness kit to directly replace the original equipment on the listed applications. Follow the vehicle service information for access and installation steps.
