Dodge Durango
 Service Manual
Cooling System » Description and operation
Cooling system


The cooling system consists of:

  • Radiator
  • Cooling fan (mechanical/Electrical
  • Thermal viscous fan drive
  • Fan shroud
  • Radiator pressure cap
  • Coolant reserve/overflow system (integral to upper fan shroud)
  • Transmission oil cooler (if equipped with an automatic transmission)
  • Coolant
  • Water pump
  • Hoses and hose clamps


The cooling system regulates engine operating temperature.

It allows the engine to reach normal operating temperature as quickly as possible. It also maintains normal operating temperature and prevents overheating.

The cooling system also provides a means of heating the passenger compartment and cooling the automatic transmission fluid (if equipped). The cooling system is pressurized and uses a centrifugal water pump to circulate coolant throughout the system.

An optional factory installed maximum duty cooling package is available on most models. This package will provide additional cooling capacity for vehicles used under extreme conditions such as trailer towing in high ambient temperatures.

    More about «Description and operation»:

    Cooling system

    Coolant reserve/overflow system

    Thermostat-5.2L/5.9L engines

    Thermostat-4.7L engine

    Radiator pressure cap


    Water pump

    Water pump bypass-4.7L

    Water pump bypass hose-5.2L/5.9L engines

    Automatic transmission oil coolers

    Automatic belt tensioner

    Block heater

    Hose clamps

    Viscous fan drive

    Dodge Durango Service Manual / Cooling System / Description and operation / Cooling system

    Dodge Durango Service Manual


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