Product review (5 stars): Perfect fit for Whirlpool, Kenmore and KitchenAid
Perfect fit for Whirlpool, Kenmore and KitchenAid dishwashers with 13293K in the model number (Mine is a Kenmore Model 665.13293K112).  This YouTube video shows how to install the replacement parts step by step:  https://www.youtube.com/watch?v=otUn8eoceBw

I was able to swap out the parts in under 15 minutes.  Make sure you have the right Torx bit, it's like a hex head screwdriver.  Flat head and Phillips won't fit properly.