The New Whirlpool Washer Drain Pump Assembly OEM Part #W11259498, W11399437 is a compatible replacement part for Whirlpool washing machines. This electric-powered drain pump assembly is designed for built-in/ integrated installation and is suitable for agitator washing machines. Made of plastic with a multicolor finish, this automatic dispenser unit is lightweight, weighing less than 7 lbs. With a power of 400W or less, this drain pump is a reliable component for maintaining the functionality of your Whirlpool washer.