Product review (3 stars): like original; great for DIY dishwasher repair
this is the chopper that cuts up food particles in the dishwasher.  it is made partly of plastic, so If a bone gets into it the unit will break and need to be replaced.  sounds flimsy to me, but I guess that is cheaper than replacing the whole motor.  To get a serviceman to do this job will cost you $150 or more.  If they have to order the part you will have to pay for 2 service visits.  buying this and replacing requires some mechanical IQ, but is not particularly technical.  there are plenty of help available on you tube for example on how to do it.