Product review (1 stars): Unbelievable screech!
The price is good, but the pulleys make a *horrible* screeching sound.  Luckily I only needed replacement strings for my dishwasher, so I reused my old pulleys.  I had seen the "squeak" mentioned in a couple other reviews, but I was completely unprepared for just how LOUD it is.  If I had needed to replace the pulleys as well, I would have returned these as there is no way my family could have tolerated the noise every time we opened the dishwasher.

I'm not sure if these are real KitchenAid parts or just "compatible," but I will buy directly from KitchenAid if I need replacements next time.