Equip your semi truck to be Ready for the Road Ahead™, with the Dorman HVAC Blower Motor Switch, a key component that rapidly activates the HVAC in a commercial vehicle. Thanks to its ability to control the flow of electricity to both heating and cooling components, this replacement device is the ideal option to maintain a cozy and comfortable environment inside of a cabin. Crafted with a durable construction to ensure reliable performance at both high and low speeds. FleetPride is your First Click in Heavy Duty®.