Undoubtedly. each filter on a vehicle is just as important as the next. While most people have a good idea of what role an oil or air filter plays, the exact purpose of a coolant filter seems more abstract.
Why Coolant Filters?
Coolant filters on diesel engines are designed to remove:
Coolant filters mechanically filter the coolant through fine media, removing impurities such as sand and rust particles suspended in the coolant.
Coolant filters provide many basic roles for engines, two of which include:
Ensure a clean cooling system
Improve heat conductivity when chemical additives are utilized
Coolant filters trap and hold sludge and other contaminates, while dispensing chemial additives that protect the system from its three arch enemies: ( Scale, Corrosion and cavitation erosion ).
Rust particles are particularly nasty. If they are not filtered out of the coolant, they will quickly damage aluminum and similar soft-metal cooling system components.