Four Seasons HVAC Blower Motor Resistor P/N:20600
Help your heater and A/C blower run at its lower fan speeds with this Four Seasons switch, the HVAC Blower Motor Resistor / Switch 20149, designed to regulate the voltage sent to the blower motor. It fits many vehicles, among them the 1987-1993 Mazda B2200, 1987-1993 Mazda B2600 and 1986-1987 Mazda B2000, as a direct-fit replacement for the listed applications. See the Buyer's Guide tab for the full list and engine details.
A blower motor resistor reduces the current reaching the blower motor so the fan can run at its lower speed settings. If a failed resistor is the cause of missing fan speeds, this unit replaces it. The part is listed under two names, HVAC Blower Motor Resistor and Switch.
Signs this part may need replacing: the blower works on some speeds but not others, or runs only on its highest setting. Wiring, the control switch or the blower motor can cause similar symptoms, so diagnose the cause before replacing parts.
Interchange: 11120149 · 973092 · UB3961B15A · A08028 · SW11675 · JA1173
This part cross-references / interchanges with the following part numbers:
What does the Four Seasons 20149 blower motor resistor do?
It regulates the voltage delivered to the HVAC blower motor so the fan can run at its lower speed settings. It is listed under both HVAC Blower Motor Resistor and Switch.
Will this fit my 1987-1993 Mazda B2200?
Yes. The 1987-1993 Mazda B2200 is a listed application, as are the 1987-1993 Mazda B2600 and 1986-1987 Mazda B2000. Check the Buyer's Guide tab for your exact vehicle.
What are signs a blower motor resistor may need replacing?
Common signs include a blower that works on some speeds but not others, or only on its highest setting. Wiring, the switch or the motor can cause similar symptoms, so diagnose the cause first.
What kind of connectors and contacts does it have?
It has OE-style connectors and quality contacts that are designed to provide proper conductivity.
How do I install this blower motor resistor?
Installation steps vary by vehicle. Follow the vehicle service information, and disconnect the battery before working on HVAC electrical components.
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.