Product review (5 stars): An evil necessity
If your looking at this, then yours broke as well.  Just crappy engineering.  Pay that much for a dishwasher, I expect more, and of course, its not covered under warranty.  When a company does not stand behind their product and tells me I have to order a replacement part from them @ $50.00, I was pissed.  A quick google search and tada, found it for 1/4 of the price here.
Replacement takes about 5 mins.  I bought 2 because I know the other side is going to fail soon.
It will be the last Whirlpool appliance I purchase.