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. STARLET (KP6_)
2. STARLET Estate (KP6_)
3. COROLLA (KE_, TE_)
4. COROLLA Saloon (KE_, TE_)
5. COROLLA Hatchback (_E7_)
6. T-18 Hatchback (_E7_, T18)
7. COROLLA Liftback (_E7_)
8. COROLLA Estate (_E7_)
9. CRESSIDA Saloon (_X6_)
10. CRESSIDA Saloon (MX62, _X6_)
11. HIACE II Bus (_H11, _H2_, _H3_, _H4_)
12. COROLLA Coupe (KE)
13. COROLLA Estate (TE72_)
14. COROLLA Hatchback (KE, TE)
15. CRESSIDA Station Wagon (_X6_)
16. HIACE II Van (_H11, _H2_, _H3_, _H4_)
17. LITEACE Bus (_R2_)
18. SPACIA Bus (_R2_)
19. MASTER ACE SURF Bus (_R2_)
20. LITEACE Van (_R2__V)
21. See more in applications

The principle of the thermostat work

The classic KAVO PARTS 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.