Blower Motor Resistor Replacement – Compatible with Ford and Mercury Models Ensure heating and cooling performance in your vehicle with this reliable blower motor resistor replacement. Designed to match OEM specifications, this part restores proper fan speed control for your HVAC system. Key Features and Benefits: Direct replacement for OEM part numbers 7L2Z19A706A, JA1711, 4P1588, RU636, 37557, 973554, RU1326 Restores full fan speed functionality for your heater and air conditioner blower Prevents damage to related components by correcting electrical faults caused by a failing resistor Built with quality materials for durability and long service life Compatibility and Fitment: Fits Ford Explorer (2007–2010) Fits Ford Explorer Sport Trac (2007–2010) Fits Mercury Mountaineer (2007–2010) Always verify your existing part number against the listed OEM numbers to ensure a proper match before . Function and Performance: The blower motor resistor controls the speed of your vehicle's HVAC blower fan. A failed resistor can cause the fan to operate only at certain speeds or stop working entirely, making it difficult to maintain a comfortable cabin temperature. This replacement part restores functionality, allowing full control over airflow. Practical Use Scenarios: 1. When your air conditioner only blows on speed and will not adjust to lower speeds. 2. When your heater fan works intermittently or is stuck at one speed. 3. When replacing a faulty resistor to prevent further strain or damage to the blower motor. This blower motor resistor offers a directfit solution for applicable Ford and Mercury vehicles, ensuring efficient climate control and dependable performance.