180 degree Thermostat

Mr Gasket is what I use - I try not to use parts store stats anymore.

Any of the stuff from online speed shops which are balanced should work fine. Many are very similar in design. A Mr G is 10 bucks (for me) locally, and under 9 bucks if placing an order with Summit for other stuff (so S/H is not just for the t-stat).

Good luck.