DunGu Blower Motor Resistor - Part#s 973-444 RU440 3F2Z18591AA JA1499 - For Ford Expedition, Escape, F150, F250, F350 Super Duty, Mustang, Lincoln Mark LT, Mercury Mariner With Manual Air Conditioning Important: 12 months warranty for any defect confirmed as manufacturer's defect. Fits models with Manual Air Conditioning. Doesn't fit models with Automatic (You need blower control module if you have a automatic HVAC system). Direct replacement, easy installation. Larger traces prevent premature burnout Ceramic-printed circuit board for heat dissipation Cross reference: 3F2Z-18591-AA, 3F2Z18591AA, YH1715, 973444, YH-1715, 973-444 Escape (2008) Expedition (2007-2016) F-150 (2004-2014) F-150 Heritage (2004) F-250 (2008-2009) F-250 Super Duty (2008-2010) F-350 Super Duty (2008-2010) F-450 Super Duty (2008-2010) F-550 Super Duty (2008-2010) Fiesta (2011-2013) Five Hundred (2005-2007) Freestar (2004-2007) Freestyle (2005-2007) Mustang (2005-2009) Mark Lt (2006-2008) Navigator (2009-2014) Tribute (2008-2011) Mariner (2008-2011) Montego (2004-2007)