Product review (5 stars): Replaced Thermal Cutoff on Whirlpool Oven
I used this part to replace Whirlpool part number 4452223Thermostat, Oven, on my Whirlpool oven model GBS307PDQ3. I think it is an exact replacement, and it works, but since this is a thermal safety cutoff, use your own judgement.

The original thermal cutoff activated during a self-clean cycle.