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 / VIOS Saloon (_P9_)
2. YARIS Saloon (_P9_)
3. BELTA Saloon (_P9_)
4. VIOS Saloon (_P9_)
5. LANCER VIII (CY_A, CZ_A)
6. LANCER VIII (CY_A, CZ_A, CJ)
7. GALANT FORTIS VIII (CY_A, CZ_A)
8. LANCER FORTIS VIII (CY_A, CZ_A)
9. LANCER SERIE R VIII (CY_A, CZ_A)
10. LANCER EX VIII (CY_A, CZ_A)
11. LAND CRUISER (_J7_)
12. CAREVACA (_J7_)
13. LAND CRUISER PRADO (_J7_)
14. HIACE IV Bus (_H1_)
15. REGIUS IV Bus (_H1_)
16. HIACE IV MPV (_H1_)
17. DYNA IV Bus (_H1_)
18. HIACE / COMMUTER IV Bus (_H1_)
19. QUANTUM IV Bus (_H1_)
20. PREVIA (_R1_, _R2_)
21. See more in applications

The principle of the thermostat work

The classic TRISCAN 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.