Product review (5 stars): New GE Timer works great!
This part works great and was very easy to install.  However, I have a feeling the same issue is going to arise with this one as with the original part--the post upon which the cheap plastic timer knob rests is made of plastic and will soften and break down over time.  But I can buy and install 4 of these for the cost of a repair technician.  Am very satisfied!