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. LAND CRUISER (_J6_)
2. ROCKY Soft Top (F7, F8)
3. FOURTRAK (F7, F8)
4. ROCKY Hard Top (F7, F8)
5. ROCKY Hard Top Hardtop, Wagon (F7, F8)
6. LAND CRUISER (_J7_)
7. CAREVACA (_J7_)
8. LAND CRUISER PRADO (_J7_)
9. LAND CRUISER Pickup (_J4_)
10. BANDEIRANTE Pickup (_J4_)
11. LAND CRUISER (_J4_, _J5_)
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13. DYNA Platform/Chassis (_U_, _Y_)
14. DYNA Bus (_U3_, _U2_)
15. DYNA 200 Platform/Chassis
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18. DYNA 400 Platform/Chassis (BU_, XZU_)
19. DYNA Platform/Chassis (BU_, XZU_)
20. RUGGER
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The principle of the thermostat work

The classic GATES 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.