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. PAJERO I Canvas Top (L04_G)
2. MONTERO � Canvas Top (L04_G)
3. PAJERO/SHOGUN Mk II Canvas Top (L04_G)
4. PAJERO/SHOGUN I Canvas Top (L04_G)
5. PAJERO I (L04_G, L14_G)
6. PAJERO I (L04_G, L14_G, NA, NB, NC, ND, NE, NF, NG)
7. MONTERO � (L04_G, L14_G)
8. PAJERO/SHOGUN � (L04_G, L14_G)
9. PAJERO/SHOGUN I (L04_G, L14_G)
10. L 300 / DELICA II Bus (LO3_P/G, L0_2P)
11. EXPRESS II Bus (LO3_P/G, L0_2P, SA, SB, SC, SD, SE)
12. DELICA II Bus (LO3_P/G, L0_2P)
13. L 300 III Bus (P0_W, P1_W, P2_W, P3_W)
14. STARWAGON III Bus (P0_W, P1_W, P2_W, SD, SE, SF, SG, SH, SJ,
15. DELICA III Bus (P0_W, P1_W, P2_W, P3_W)
16. L200 (K3_T, K2_T, K1_T, K0_T)
17. TRITON Pickup (K3_T, K2_T, K1_T, K0_T, ME, MF, MG, MH, MJ)
18. MIGHTY MAX (K3_T, K2_T, K1_T, K0_T)
19. L200 / STORM (K3_T, K2_T, K1_T, K0_T)
20. MIGHTY MAX SUV (K3_T, K2_T, K1_T, K0_T)
21. See more in applications

The principle of the thermostat work

The classic VALEO 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.