Product review (5 stars): Dishwasher Replacement Part
So what do you do when you lose the original of this part, or the original comes lose and gets burned by the heating element inside the dishwasher? You buy this replacement, which fits and works perfectly. That being said, $16.99 is completely absurd for a small  plastic part that probably costs no more than a quarter to manufacture, but I suppose it beats getting a new dishwasher, or having an appliance repair person coming in and installing it and adding the price of a service call if you're out of warranty. Note to self: Don't lose this piece again!