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. MAXIMA III (J30)
2. MAXIMA II Saloon (J30)
3. 300ZX (Z31)
4. 300ZX / FAIRLADY Z (Z31)
5. 300ZX (Z32)
6. FAIRLADY Z (Z32)
7. TERRANO I (WD21)
8. PATHFINDER I (WD21)
9. TERRANO � (WD21)
10. MAXIMA II (PU11)
11. SKYLINE Coupe (R33)
12. PATROL III/2 Station Wagon (W260)
13. SAFARI III/2 Station Wagon (W260)
14. MAXIMA / MAXIMA QX IV (A32)
15. MAXIMA IV Saloon (A32)
16. MAXIMA IV (A32)
17. QX IV (A32)
18. PATROL III/2 Hardtop (K260)
19. PATROL / SAFARI III/2 Hardtop (K260)
20. SKYLINE Coupe (R32)
21. 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.