Product review (5 stars): Great part for Whirlpool Duet Sport Dryer
We bought our Whirlpool Duet Sport dryer used about 5 years ago (model number WED8300SWD ).  It has always had a clunky rattle to it.  I thought it was the rollers so my son and I finally replaced them the other day.  He was looking at the blower wheel and asked what it was.  I showed him that when it spins...uh oh.  The old blower wheel was broken off the nut/hub and was just clunking around when the motor ran.

We put this in and the dry is ultra quiet now!  FYI, the rollers were just fine but we replaced them anyhow.