The Whirlpool W10451901 is a replacement evaporator motor made exclusively for Whirlpool refrigerators. An evaporator motor is a modest but vital part of your refrigerator's cooling mechanism. This circulates cool air throughout the device by powering a fan that draws heated air across the evaporator coils. These refrigerant-filled coils absorb heat from the surrounding air, cooling it. The cooled air is then pumped back into the refrigerator cavity, ensuring that your food remains at a consistent and chilly temperature. A defective evaporator motor can cause poor cooling, lower efficiency, and possibly rotting of your groceries. Replacing a faulty motor with the W10451901 can restore your refrigerator's cooling performance and assure optimal preservation of your food.