BLOWER MOTOR RESISTOR HARNESS - The wiring harness pigtail plug connects the blower motor resistor to the vehicle's electrical system. It allows for control of the blower motor speed, ensuring a secure and reliable electrical connection. It can be easily located on the passenger side of the vehicle, behind the glove box, or under the dashboard near the blower motor assembly. | COMPATIBLE WITH FORD & MERCURY VEHICLES - 2007 Expedition | 2008, 2009, 2010, 2011 Expedition (Rear) | 2004 - 2005 F-150 | 2011 Fiesta | 2005 - 2007 Five Hundred (Manual Temp Control) | 2004 - 2007 Freestar (Manual Temp Control | 2005 - 2007 Freestyle (Manual Temp Control) | 2005 - 2009 Mustang | 2005 - 2007 Montego (Manual Temp Control) | 2004 - 2007 Monterey (Manual Temp Control) |. | REPLACES PART NUMBERS - 3U2Z14S411ZEA, S1763, 1P1700, 1068, WPT688, 645-403, 645403 on various Expedition, F-150, Fiesta, Five Hundred, Freestar, Freestyle, Mustang, Montego and Monterey vehicle from model years including, 04, 05, 06, 07, 08, 09, 10 and 11. The package includes the wiring harness connector and heat shrink tubes for easy installation. | OEM FIT, QUALITY & FINISH - A direct replacement manufactured by AA Ignition for your factory HVAC Blower Motor Resistor Wiring Harness. While this is not a genuine OEM part, it will fit and work like the factory part. It is important to regularly inspect the connector plug to prevent any loose connections or corrosion, which can lead to a malfunctioning blower motor. | LIFETIME WARRANTY - This pigtail harness comes complete with a Lifetime Warranty. If the wiring harness ever fails on your vehicle, simply contact us for a free replacement. Save time and money by purchasing this part and installing it yourself.