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. LANCER V (CB_A, CD_A, CE_A)
2. LANCER V Saloon (CB_A, CC, CD_A, CE_A)
3. LANCER Mk V (CB_A, CD_A, CE_A)
4. LIBERO V (CB_A, CD_A, CE_A)
5. 3000 GT Coupe (Z1_A)
6. GTO Coupe (Z1_A)
7. PAJERO II (V3_W, V2_W, V4_W)
8. PAJERO II (V3_W, V2_W, V4_W, NH, NJ, NK, NL)
9. MONTERO � (V3_W, V2_W, V4_W)
10. PAJERO/SHOGUN Mk II (V3_W, V2_W, V4_W)
11. PAJERO SFX /SHOGUN II (V3_W, V2_W, V4_W)
12. PAJERO/SHOGUN II (V3_W, V2_W, V4_W)
13. MONTERO II (V3_W, V2_W, V4_W)
14. SHOGUN II (V3_W, V2_W, V4_W)
15. LANCER V Station Wagon (CB_W, CD_W)
16. LANCER V Station Wagon (CB_W, CD_W, CC, CE)
17. LANCER V Break (CB_W, CD_W)
18. LANCER Mk V Station Wagon (CB_W, CD_W)
19. LIBERO V Station Wagon (CB_W, CD_W)
20. PAJERO IV Van (V9_, V8_, V8_V)
21. See more in applications

The principle of the thermostat work

The classic MAHLE ORIGINAL 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.