Product review (5 stars): Fixed my squealing Duet Dryer
These are Whirlpool Certified Parts (whatever that means).  They appeared to be new and equal to or better than what was initially installed in my Duet Dryer.  I used this kit on a model WED9200SQ1 and other than the front bezel/console area, it was very easy to disassemble using videos on YouTube.

Took me about 30 minutes to get everything disassembled and parts installed.  Spent the rest of the time cleaning all the lint, hair and debris scattered throughout the innards of the dryer.  Works like a champ.

Quick delivery too!