This is the 3rd time fixing broken wheels on the top rack of this Whirlpool dishwasher. No wonder there is a class action suit over it.
Finally this time someone has designed the adjuster with stainless steel, but I'm not sure the wheels are any better since they seem to be plastic and attached to the stainless steel with plastic. But, there's nothing else out there to choose from that's any better.
BUT, be very aware this replacement did not come with any instructions. The design is different than the original. It took more time than but playing with the parts I figured out how to attach it. There were no instructions or help regarding this on their website. If your good at puzzles you can figure it out.