I'm looking for a thermostat that fits into the hose (i.e. not onto the cylinder head), This is for a special project and I have been told that some older Fiats used this system. Can anyone tell me if this is true and if so a. which model(s) and b. where to get them from?

Nothing I can remember like that..

Try a good motor factors, they may be able to help.

VOLVO 340 1.4 has what you are looking for, its a renault engine so some older renault 1.4 may also have them not sure. but the volvo defintly has them.

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