Product review (5 stars): 90% of the time this will fix your washer
If your He washer is having any issues at all then 90% of the time it's this small affordable part that you need to replace.  Couple bolts on the bottom hold this in place so it's pretty easy to do the work yourself.  I talked my step-daughter through it and she's a total twig with no real strength at all (swear she weighs about 120lb soaking wet) - she had no problem doing it herself and she's not what I would call 'mechanically inclined'.

If you've got a washer problem then buy this - in fact buy 2 so you have a spare (can't help it I'm an Engineer I try to always have a spare on hand).