First4Spares Thermostat Kit for Hotpoint Tumble Dryers

are these thermostats compatible with all hotpoint tumble dryers.many thanks in advance

I understand it matters which item you install in each position in the dryer. How do i know which is which? My factory fitted ones have a green dot 1.

Would these thermostats be compatible with hotpoint tumble dryer model fetc70cpuk?

What are the part numbers for these two components? I have a caravan heater which seems to use the same parts but I wanted to know the part numbers.