THERMOSTAT COOLANT FOR TOYOTA YARIS/VERSO/FUN/CARGO/VITZ ECHO/VITZ AVENSIS 1.3L SASIC 9000737

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. YARIS VERSO (_P2_)
2. YARIS VERSO / FUN CARGO (_P2_)
3. FUN CARGO (_P2_)
4. ECHO VERSO (_P2_)
5. AVENSIS Liftback (_T22_)
6. AVENSIS (_T22_)
7. AVENSIS Estate (_T22_)
8. YARIS (_P1_)
9. ECHO (_P1_)
10. YARIS/VITZ (_P1_)
11. VITZ/ECHO (_P1_)
12. COROLLA Liftback (_E11_)
13. PRIUS Saloon (_W1_)
14. PREVIA (_R3_)
15. TARAGO (_R3_)
16. PREVIA / ESTIMA (_R3_)
17. ESTIMA (_R3_)
18. AVENSIS VERSO (_M2_)
19. VERSO SPORTVAN (_M2_)
20. IPSUM (_M2_)
21. 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.