According to Alfa parts CD item 1 - 60512869 thermostat is one you need for 87-92 164 2.0 twin spark engine. Later engines use 60556559 according to parts CD.
Here in USA www.difatta.com shows one 60512869 in stock. Email them at [email protected] and ask Ed if he has one he can ship you.
Here in USA www.difatta.com shows one 60512869 in stock. Email them at [email protected] and ask Ed if he has one he can ship you.