Dial 2202 1/3 HP 2 Speed Motor High-efficiency residential replacement motor. Superior starting switch features. The Dial Black Metal Evaporative Cooler Motor is a replacement motor designed for use in evaporative or "swamp" coolers, providing the power to run the cooler's blower fan for efficient air circulation and cooling. It is constructed from metal, typically steel, for durability and often comes in a black finish. The motor generally features a two-speed design to allow the user to control the airflow and cooling level.