Product review (2 stars): Correct part but cheap construction
On the positive side, the knob is identical to the one that I needed to replace and fits perfectly.

On the negative side, they are made of cheap plastic that is not up to the job it needs to do. This is the second replacement I've had to buy, and the previous one lasted only 5 months of normal usage before cracking. Really shoddy design. Whirlpool should be able to do better than this.