The Primatech 4-Terminal Blower Resistor is the perfect solution for controlling the speed of your blower motor. This high quality resistor unit features a voltage rating of 12Vs and has 4 terminal connections for easy installation and replacement. It is made from high quality materials for maximum durability and performance and is designed to meet or exceed OEM specifications. With its easy installation and reliable performance, this blower resistor is the perfect choice for your Ford vehicle. FleetPride is your First Click in Heavy Duty®.