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. CRX III (EH, EG)
2. CIVIC del Sol MK V (EH, EG)
3. CIVIC del Sol Mk III (EH, EG)
4. ACCORD IV (CB)
5. ACCORD IV Saloon (CB)
6. ACCORD Mk IV (CB)
7. CIVIC V Hatchback (EG)
8. CIVIC IV Hatchback (EG)
9. CIVIC MK V Hatchback (EG)
10. CIVIC V Saloon (EG, EH)
11. CIVIC MK V Saloon (EG, EH)
12. BALLADE V Saloon (EG, EH)
13. ACCORD V (CC, CD)
14. ACCORD V Saloon (CC, CD)
15. ACCORD Mk V (CC, CD)
16. CIVIC VI Fastback (MA, MB)
17. CIVIC V Coupe (EJ)
18. CIVIC MK V Coupe (EJ)
19. ACCORD V Aerodeck (CE)
20. ACCORD Mk V Aerodeck (CE)
21. See more in applications

The principle of the thermostat work

The classic FEBI BILSTEIN 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.