Standard Ignition RU538 front blower motor resistor for the 1997-2003 Ford F-150 and other vehicles sets the speed of the blower motor in the heater and A/C. Also called an HVAC blower motor resistor, it is sold individually, one per listing.
- Copper alloy conductors with minimal resistive losses for consistent performance
- Engineered through research and design to integrate with the vehicle's HVAC system
- Restores variable speed control of the A/C and heater blower motor
- Extensive testing for durability
Quick facts
- Part: Standard Ignition RU538 blower motor resistor
- Also called: HVAC blower motor resistor
- Fits: 1997-2003 Ford F-150 and other vehicles
- Position: Front
- Condition: New
A blower that runs on only some speeds, or not at all, can mean this resistor is worn, though the blower motor or a damaged connector can be behind the same signs, so find the cause before replacing it.
Fits
The 1997-2003 Ford F-150, 1997-2003 Ford F-250 and 1997-2002 Ford Expedition each take one blower motor resistor, and this one fits many more vehicles.
Specifications
Fit and size
- Position: Front
- Quantity per vehicle: 1
- Number of speeds: 3-5 speed
- Terminals: 5 male blade terminals
- Connector: rectangular, female
- Attachment method: Screw
Build and materials
- Coil type: Electronic
- Conductors: copper alloy
- Condition: New
- Country of origin: Taiwan
In the box
One blower motor resistor. The wiring harness, mounting hardware and mounting bracket are not included, so plan on new screws, as the old ones may not be reusable.
Interchange: RU1231 · JA1704 · BR489 · F3LY19E624A · F5LY19E624A · YL7Z19E624A · YL7Z19E624AA
This part cross-references / interchanges with the following part numbers:
RU1231, JA1704, BR489, F3LY19E624A, F5LY19E624A, YL7Z19E624A, YL7Z19E624AA
Frequently Asked Questions
Is this a Ford F-150 blower motor resistor for the 1997-2003 model years?
Yes, Standard Ignition RU538 fits the 1997-2003 Ford F-150. If your vehicle isn't named here, find your year and model in the "Vehicles it fits" section.
Does this blower motor resistor come with a wiring harness?
No. Standard Ignition RU538 is the resistor only; the wiring harness, mounting hardware and mounting bracket are not included.
How many speeds does the Standard Ignition RU538 blower motor resistor handle?
Standard Ignition RU538 is listed for 3-5 speed blower systems, with an electronic coil type and five male blade terminals.
My heater blower only works on some speeds. Could the blower motor resistor be the cause?
It can be. A blower that runs on only some speeds is one sign of a worn blower motor resistor, and a shop can test the circuit to confirm.
Does Standard Ignition RU538 replace part number YL7Z19E624A?
Yes. YL7Z19E624A is on the interchange list for Standard Ignition RU538, along with F3LY19E624A, F5LY19E624A and YL7Z19E624AA.
