Product review (5 stars): Original equipment replacement cheaper than what I found locally.
When my Whirlpool Quiet Partner III gave up the ghost, I was not happy considering the prospect of replacing the entire dishwasher.  Everything seemed fine but the tub would not drain.  After some diagnostics, I found that it was the drain pump motor.  A few quick calls to local appliance parts places revealed that I would have to pay $80 if I wanted to pick one up that day.  Searched Amazon and found the same thing way cheaper and prime had it to my door in a couple of days.  Worked like a champ and the old washer is back up and running again!