Product review (5 stars): Easy to replace
Fits Maytag 5000 Series with Steam; model: MHWE550WW01

Do NOT buy the entire 'Whirlpool Washer Pump Assembly 280187' but only this pump.
Easy to replace:
1. unscrew the bottom front of the washer
2. pull the robber holders between the pump and the washer base
3. use pliers to decompress 2 hose clamps
4. use sharpie-marker to mark the location between the pump and the catcher (so you'll know how to put the new back)
5. unscrew the 3 screws... and put the new one back