If you are looking for a reliable and affordable replacement for your faulty blower motor resistor, look no further than this HVAC Blower Motor Resistor from our store. This blower motor resistor is designed to fit vehicles with manual AC control only. It is compatible with various models of Ford, Lincoln and Mercury vehicles, such as: 2008-2012 Ford Escape 2007-2017 Ford Expedition 2004-2014 Ford F-150 2007-2010 Ford F-250 Super Duty 2007-2010 Ford F-350 Super Duty 2007-2010 Ford F-450 Super Duty 2008-2010 Ford F-550 Super Duty 2011-2013 Ford Fiesta 2005-2007 Ford Five Hundred 2004-2007 Ford Freestar 2005-2007 Ford Freestyle 2005-2010 Ford Mustang 2006-2008 Lincoln Mark LT 2007-2013 Lincoln Navigator 2008-2011 Mazda Tribute 2008-2011 Mercury Mariner 2005-2007 Mercury Montego 2004-2007 Mercury Monterey 2004-2010 BMW X3 2001-2006 BMW M3 2001-2005 BMW 325Ci 2001-2005 BMW 325i 2001-2005 BMW 325xi 2001-2005 BMW 330Ci 2001-2005 BMW 330xi 2000-2006 BMW X5 2001-2003 BMW 525i 2001-2003 BMW 530i 1997-2003 BMW 540i 1999-2000 BMW 323i 2000-2000 BMW 323Ci 1996 1999 2000 BMW 328i The function of the blower motor resistor is to control the fan speed of your blower motor by changing resistance and limiting the current through the blower motor. If your AC system no longer blows or the fan speed settings are not working, you may need to replace the blower motor resistor. This is a common problem that can be caused by wear and tear, corrosion, overheating or moisture. To replace the blower motor resistor, you just need to locate it under the passenger side dash, remove the screws that secure it into the blower, disconnect the electrical connector, remove the old resistor and install the new one in place. No special tools or skills are required. The whole process should take less than 15 minutes.