The AC Blower Motor Resistor 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. Installation can be completed in under 20 minutes and you can save hundreds by doing this repair yourself.Fits the following vehicles:Only fits models with MANUAL AC controls and without rear A/C vents in the center console. If you are unsure remove your factory blower resistor and insure it looks like the one pictured2003-2006 Escalade ESV, EXT 2003-2006 Avalanche 1500 & 2500 2003-2006 Silverado 1500, 1500 HD, 2500, 2500 HD, 3500, 3500 HD 2003-2006 Suburban 2003-2006 Tahoe 2003-2006 Sierra 1500, 1500 HD, 2500, 2500 HD, 3500, 3500 HD 2003-2006 Yukon and Yukon XLReplaces part #:89019088, 973-405, 15-81086, 22807123This part is not a genuine OEM part, it is manufactured by AA Ignition and comes with a lifetime warranty. The vehicle makes, associated models and part numbers are used only to identify the vehicles this blower motor resistor fits.