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. LX (_J2_)
2. GX (URJ15_, GRJ15_)
3. SEQUOIA (_K6_)
4. LAND CRUISER 200 (_J2_)
5. LAND CRUISER (_J2_)
6. LAND CRUISER 200 SUV (_J2_)
7. TUNDRA Pickup (_K5_, _K6_)
8. TUNDRA SUV (_K5_, _K6_)
9. LAND CRUISER PRADO (_J12_)
10. LS (_F4_)
11. LS Saloon (_F4_)
12. IS II (_E2_)
13. IS II Saloon (_E2_)
14. GS (_S19_)
15. GS Saloon (_S19_)
16. RC (_C1_)
17. GS (_L1_)
18. CENTURY (_G6_)
19. See more in applications

The principle of the thermostat work

The classic BLUE PRINT 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.