THERMOSTAT COOLANT FOR PEUGEOT 504/Break/Convertible/Pickup 404 J7/Van J9 1.8L SASIC 3371261

Thermostat is a device for maintaining a static (constant) temperature, as its name implies. There are thermostats of different designs in many devices and mechanisms, from water heaters to refrigerators. There is also a thermostat in a car's internal combustion engine (liquid-cooled, of course). In a car, the thermostat regulates the temperature of the coolant (antifreeze): it accelerates the warm-up of a cold engine and provides heat removal from the hot one. Therefore, the engine works more efficiently and more comfortably for the driver, especially in winter - without a thermostat, the stove would usually blew cold air.

1. 504 (A_, M_)
2. 504 Saloon (A_, M_)
3. 404
4. 404 Saloon
5. 404 Convertible
6. 504 Break (D_, F_)
7. 504 Coupe
8. 504 Convertible
9. J7 Van
10. J9 Van
11. J9 Platform/Chassis
12. 504 Pickup (E_)
13. See more in applications

The principle of the thermostat work

The classic SASIC brand Thermostat, coolant is a movable valve that moves due to a change in the external environment - heating or cooling of antifreeze. The thermostat is made of a thermoelement filled with a substance resembling wax in structure - ceresin, with the addition of copper powder, graphite or aluminum for better thermal conductivity. At a certain temperature of the antifreeze, ceresin expands, opening the thermostat valve. When the motor cools down, ceresin contracts and the thermostat closes again.