The water pump housing is an exterior shell that covers the pump and it is typically composed of aluminum or steel.
Water pump housing operation
The water pump is vital to modern vehicles and without a properly functioning water pump, the engine would overheat. The water pump housing is just as important as the water pump itself. It is composed of solid material which can maintain pressure from the drive belt. The housing is also susceptible to excessive heat and this is another reason why the housing must be built off thick material.
Common problems with a faulty water pump housing
A faulty water pump housing can lead to rust damage, fan failure, and poor lubrication of the O-rings.