Christopher S Chula Vista , CA July 14, 2023 Appliance: Whirlpool Washer WFW9450WR00 Whirlpool Washer Wfw9450wr00: Water would not drain out. How to replace Water Pump. I ordered the part from here and removed the faulty pump prior to the part's arrival. Once the part arrived I installed the pump and performed an in-system operational test of the pump. Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes