Designed to help return your blower to normal fan-speed control, the Dorman HVAC blower motor resistor kit, part number 973-913, pairs a front blower motor resistor with a harness pigtail. It replaces an overheated or corroded original equipment resistor. It fits many vehicles, among them the 2013-2018 Ram 1500, 2013-2018 Ram 2500 and 2011-2017 Jeep Wrangler. See the "Vehicles it fits" section for the full list and engine details.
- Direct replacement: This resistor and harness kit directly replaces the original equipment on the listed applications.
- Resistor plus pigtail: Each kit includes a resistor and a harness pigtail, which Dorman says is essential for most repairs.
- Performs like the original: It is made to perform like original equipment and is intended to bring back full HVAC operation when a failed resistor is the cause.
- Engineering support: It is backed by a team of engineers and quality specialists in the USA.
The blower motor resistor controls the current that reaches the blower motor, which is how the HVAC controls select different fan speeds. Signs it may need replacing include a blower that works on only certain speeds, no airflow at lower settings, or a resistor or connector that is overheated or corroded. Diagnose the cause before replacing, because a failing blower motor or control can produce similar symptoms. If a failed resistor is behind your fan-speed problem, this Dorman blower motor resistor replaces it, and the kit includes a harness pigtail.
Interchange: 4P1600 · RU1414 · RU1528 · 1580584 · 25770670 · 68018105AA · 68048901AA · RU725 · RU839 · JA1722
This part cross-references / interchanges with the following part numbers:
4P1600, RU1414, RU1528, 1580584, 25770670, 68018105AA, 68048901AA, RU725, RU839, JA1722
Frequently Asked Questions
What does a blower motor resistor do?
It controls the current sent to the blower motor so the HVAC controls can select different fan speeds. This kit's resistor serves the front HVAC system on the listed applications.
What comes with the Dorman blower motor resistor kit?
Each kit includes a resistor and a harness pigtail. Dorman notes that the pigtail is essential for most repairs.
What are signs the blower motor resistor may need replacing?
Common signs include a fan that works on only some speeds, no airflow at lower settings, or an overheated or corroded resistor or connector. Diagnose first, since the motor or controls can cause similar symptoms.
Does it fit the 2013-2018 Ram 1500 and Ram 2500?
Yes. Part number 973-913 directly replaces the original equipment on the 2013-2018 Ram 1500 and 2013-2018 Ram 2500. The "Vehicles it fits" section lists every application.
How is the kit installed?
The new resistor replaces the original unit in the front HVAC system, and the kit supplies a harness pigtail for the repair. Follow the vehicle service information for the resistor location and wiring procedure.
