Product review (5 stars): Worked great
I have a Whirlpool model# WFW9470WR01.  My dryer was squeaking real loud, so I ordered this kit.  When I opened the dryer, the belt looked fine, so I just changed the idler roller.  Now the Dryer works fine.  I am holding on to the other parts just in case I need them. I will say that the idler roller was larger than the one I replaced, but it seems to work fine. I will update this post if anything negative happens.