Product review (2 stars): Use caution!!
I bought this after the knob on my (old) Kenmore broke. It purportedly is a direct replacement but apparently the design/specs changed over the years. My older Kenmore Model 100 has a larger diameter shaft. No go. Return in process.
A photo of the items involved -

https://www.amazon.com/clouddrive/share?s=VCHL8DqoRJkomA1Y4O2

7/22/13

Up-date: Repair of broken knob in progress - waiting for Liquid Nails to set.
(which, BTW, IS best thing since sliced bread)

p.s. The vendor for this item made things right immediately.