HVAC Blower Motor Resistor Replacement Direct Fit For Ford F-150 2004-2014, F-250, F-350 Super Duty 2008-2010, Lincoln Mark LT 2006-2008, Mercury Mariner 2008-2011 Replaces 3F2Z-18591-AA YH-1715
✔️ Single unit direct-fit replacement for manual A/C, Ford/Mercury
This HVAC blower motor resistor is a direct replacement designed for Ford, Lincoln, and Mercury vehicles with manual A/C controls. It matches OEM references like 3F2Z-18591-AA and YH-1715, and fits models listed in the compatibility chart (e.g., Ford F-150 2004-2014 and select Super Duty trucks).
✅ Replaces part numbers 3F2Z-18591-AA, 3F2Z18591AA, YH1715, 973444
✅ Fits models with manual A/C controls only
✅ ABS housing with copper cores for durability
✅ Direct-fit installation and stable performance
✅ Improves airflow consistency and temperature control
💡 What is a blower motor resistor and why replace it in Ford/ Lincoln manual A/C systems? This handy device controls fan speed by varying resistance to the blower motor, fixing intermittent airflow. - It reduces current to the blower motor to create different speeds - A failing resistor leads to weak airflow or no airflow at certain settings - Replacing with a direct-fit unit restores stable climate control in manual A/C vehicles