THERMOSTAT COOLANT FOR TOYOTA 1KZ-T/TE 3.0L 4cyl 4 RUNNER 3MZ-FE 3.3L 6cyl BLUE PRINT ADT39218

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. HARRIER (_U3_)
2. HILUX VI Pickup (_N1_)
3. TACOMA VI Pickup (_N1_)
4. HILUX MIGHTY X / HILUX TIGER VI Pickup (_N1_)
5. LAND CRUISER PRADO (_J12_)
6. HILUX Platform/Chassis (LN_, _N1_)
7. HIACE IV Bus (_H1_)
8. REGIUS IV Bus (_H1_)
9. HIACE IV MPV (_H1_)
10. DYNA IV Bus (_H1_)
11. HIACE / COMMUTER IV Bus (_H1_)
12. QUANTUM IV Bus (_H1_)
13. 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.