THERMOSTAT COOLANT FOR FIAT 146B2/149B3.000 1.7L 149B1/160A7/280A1.000 1.9L 4cyl SWAG 70 91 2774

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. J5 Bus (280P)
2. UNO (146_)
3. DUCATO Panorama (280_)
4. DUCATO Panorama (290_)
5. J5 Bus (290P)
6. J5 Platform/Chassis (280L)
7. TIPO (160_)
8. FIORINO Box Body/MPV (146_)
9. DELTA I (831_)
10. DELTA � (831_)
11. DUCATO Van (280_)
12. DUCATO Van (290_)
13. J5 Platform/Chassis (290L)
14. J5 Van (280L)
15. TEMPRA (159_)
16. TEMPRA S.W. (159_)
17. TEMPRA SW (159_)
18. BRAVA (182_)
19. BRAVO I (182_)
20. DUCATO Platform/Chassis (290_)
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The principle of the thermostat work

The classic SWAG 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.