Help bring back full fan-speed control with the Standard Blower Motor Resistor RU-103, designed to restore A/C and heater blower motor variable speed control when a failed resistor is behind the problem. It fits many Dodge vans, among them the 1997-2003 Dodge Ram 1500 Van, 1997-2003 Dodge Ram 2500 Van and 1997-2003 Dodge Ram 3500 Van, as a direct-fit replacement for the listed applications. See the Buyer's Guide tab for the full list and engine details.
As the HVAC blower motor resistor, this part adds resistance to the blower motor circuit so the fan can run at its lower speeds. Signs it may need replacing include a blower that runs only on high or skips certain speed settings. A switch or wiring fault can cause similar symptoms, so diagnose the cause before replacing. The catalog lists this resistor for front and rear positions.
Interchange: RU898 · 4734998 · 4734998AB · 4885346AA · 4885456AA · 4885456AB · 5003333AA · JA1470 · BR129
This part cross-references / interchanges with the following part numbers:
What does a blower motor resistor do?
It adds resistance to the blower motor circuit so the fan can run at lower speeds. The RU-103 is designed to restore variable speed control for the A/C and heater blower.
What are signs this part may need replacing?
Common signs include a blower that runs only on high or skips certain speeds. A switch or wiring fault can cause similar symptoms, so diagnose before replacing.
Does the RU-103 fit my 1997-2003 Dodge Ram 1500 Van?
Yes, it is a direct-fit replacement for the 1997-2003 Dodge Ram 1500 Van, 1997-2003 Dodge Ram 2500 Van and 1997-2003 Dodge Ram 3500 Van. Check the Buyer's Guide tab for your vehicle.
How is the resistor protected from current surges?
A built-in fuse helps protect against resistor failure from an excessive electrical current surge, which helps guard the blower motor and other components from damage.
What are the connectors and terminals made of?
It uses copper electrical connectors for precise resistance values and tin-plated steel terminals for corrosion resistance and conductivity.
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.
