Product review (5 stars): Easy to install
Finally a replacement part that is metal.  Easy to install.  I expect it will las longer than a year, unlike its original plastic part that breaks after a year of expanding and contracting.  The roller keeper breaks and a small piece comes off and gets caught in a wheel in the drain.  Now the dish washer doesn't work, making it appear that the pump is out.  Luckily I found a Youtube video by describing the symptoms and found the little triangle piece lodged in the drain wheel.  Saved a lot of money.  The replacement wheels appear to be replaceable and are screwed on.  Only been installed for a month, but I can say the metal replacement parts work great.