Standard Ignition HVAC Blower Motor Resistor P/N:RU-870
Help bring back selectable fan speeds in the cab with the Standard Ignition Blower Motor Resistor RU-657, a Toyota Pickup blower motor resistor designed to restore A/C and heater blower variable speed control. It is a direct-fit replacement for the 1979-1981 Toyota Pickup. See the Buyer's Guide tab for engine-specific details.
The blower motor resistor controls the voltage sent to the blower motor so the fan can run at the different speed settings chosen on the HVAC control. Standard Ignition designed this unit specifically for Toyota applications:
A failed resistor can leave the fan working only on high or skipping some settings. If a failed resistor is the cause of your fan-speed problem, the RU-657 replaces it. Diagnose the blower circuit before you replace parts.
Interchange: RU1347 · JA1350 · BR558 · 8713887004 · 8713889004
This part cross-references / interchanges with the following part numbers:
What does an HVAC blower motor resistor do?
It controls the voltage sent to the blower motor so the fan can run at the different speed settings selected on the HVAC control.
Which vehicles does the Standard Ignition RU-657 fit?
It is listed for the 1979-1981 Toyota Pickup. See the Buyer's Guide tab for engine-specific details.
What are signs the blower motor resistor may need replacing?
Common signs include a fan that works only on high or skips some speed settings. Other components can cause these symptoms, so diagnose the circuit before replacing the resistor.
Which part numbers does the RU-657 interchange with?
It interchanges with RU1347, JA1350, BR558, 8713887004 and 8713889004.
What is special about its electrical connectors?
Standard Ignition uses premium copper electrical connectors for more precise resistance values. The manufacturer says this improves performance and offers a longer part life.
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.