Controls the fan speed in your AC and heating system. If you can no longer adjust the air speed with your AC controls or your AC system no longer blows chances are you need a new Blower Motor Resistor. This COMPLETE KIT includes the Blower Motor Resistor and New Wire Harness. The AC Blower Motor Resistor is located on lower passenger side dash and is easily accessible by removing a few screws. Fits the following vehicles: 2005-2017 Tacoma Replaces part numbers: 973-582, 8713804050, 8713804052, 4P1650, JA1772, RU1435, RU746. This is a compatible replacement part manufactured by AA Ignition. This Blower Motor Resistor is NOT a genuine Tacoma part. Their associated vehicle models and part numbers are used in this listing only to identify the vehicles this Blower Motor Resistor fits.