The Drain Pump is an OEM part for Frigidaire dishwashers. It is responsible for removing water from the dishwasher tub at the end of each cycle. The drain pump works in conjunction with the drain hose to efficiently expel dirty water and ensure dishes are thoroughly dried. Symptoms of a bad drain pump include: Water not fully draining out of the bottom of the dishwasher tub Puddles or standing water left inside after a cycle is finished Mildewy or musty smells emitting from the appliance Loud or grinding noises coming from the drain pump motor area This OEM Frigidaire part is also compatible with Electrolux, Gibson, Kelvinator and some Kenmore models.Part Number 5304524920 (AP6987179) replaces 5304475636, 5304497818, 5304491458.