Product review (5 stars): work perfectly, saved me about $150!! Wahoo!!
SUCCESS!! And my obnoxious neighbor swore I'd never be able to fix my dryer, because he couldn't figure it out. HA HA HA, pbthbthbththth!! .
These thermostats worked perfectly on my older Whirlpool Gold dryer, and they appeared to be identical to the ones I took out.

The only difficulty I really had was replacing the metal 'tube' which holds the heating element & thermostats. I absolutely refused to disassemble the ENTIRE freaking dryer*, so managed (with difficulty) to get it out. even more difficulty ensued when I tried to put it back, so I ended up bending down the little, semi-circular tab which went into the flange at the back. Since the whole assembly is held in place with 2 screws on the brace in front, it hasn't made a bit of difference.

*reminded me of the Fiat Spider I used to have, where you had to pull the engine block to replace the spark plugs.