OUTLINE
Quick connectors are used in order to improve serviceability. The hoses can now be connected and disconnected without using any tools.
A water-cooled type oil cooler is used to lower the oil temperature.
A water-cooled type EGR valve assembly and water-cooled type EGR cooler are used to lower the EGR gas temperature.
| *A | Models with Combustion Type Power Heater | *B | Models without Combustion Type Power Heater |
| *1 | Radiator Reservoir Assembly | *2 | Water Pump |
| *3 | Radiator Assembly | *4 | Water Inlet
|
| *5 | Oil Cooler | *6 | EGR Cooler Assembly |
| *7 | Heater Assembly | - | - |
| *a | From Heater Radiator Unit Sub-assembly | *b | To Heater Radiator Unit Sub-assembly |
| *c | Quick Connector | - | - |
SPECIFICATION
Engine Coolant
Toyota recommends the use of approved "Toyota Premium Long Life Coolant for 1WW/2WW engines" or equivalent.
Thermostat
| Thermostat Opening Temperature | Approx. 88°C (190°F) |