Dorman - HD Solutions HVAC Blower Motor Resistor P/N:973-5089
Replace an overheated or corroded blower motor resistor and the connector that feeds it in a single job with the Dorman hvac blower motor resistor kit, part number 973-5094 from Dorman - HD Solutions. It fits many vehicles, among them the 2000-2012 International 5900I, 2000-2017 International 9900I and 2000-2014 International 5500I. See the Buyer's Guide tab for the full list and engine details.
A blower motor resistor lowers the voltage reaching the blower motor so the HVAC system can run the fan at its lower speed settings. When the original resistor overheats or its connector corrodes, one or more fan speeds can stop working. This Dorman blower motor resistor ships with a harness pigtail, so the damaged connector can be replaced along with the resistor.
Signs this part may need replacing include a blower that runs on only some speeds or not at all, or a melted or corroded connector at the resistor. Diagnose the cause first, because a faulty switch, blower motor or wiring can produce similar symptoms.
Interchange: 577.55594 · 577.55594H · 33-31953
2503727C1 · 57755594 · 57755594H · 3331953
This part cross-references / interchanges with the following part numbers:
What comes in the Dorman blower motor resistor kit?
Each kit includes a blower motor resistor and a harness pigtail, so a corroded or overheated connector can be replaced along with the resistor.
What does a blower motor resistor do?
It lowers the voltage reaching the blower motor so the HVAC system can run the fan at its lower speed settings.
What are signs the blower motor resistor may need replacing?
Common signs include a blower that works on only some speeds or not at all, or a melted or corroded resistor connector. Diagnose first, because switch, motor or wiring faults can cause similar symptoms.
Does it fit the International 9900I?
Yes, it is listed for the 2000-2017 International 9900I, as well as the 2000-2012 International 5900I and 2000-2014 International 5500I. See the Buyer's Guide tab for other models.
How is the kit installed?
The resistor replaces the original unit and the pigtail replaces the damaged connector. Follow the vehicle service information for the resistor location and the correct way to connect the new pigtail to the harness.
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.