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Filters that Remove Contaminants and Maintain Cooling System Balance

It's estimated that 40-50% of engine downtime is due to coolant system failure. And with today's diesel engines, coolant balance is key to keeping your engine running efficiently. Your engine coolant battles rust, scale formation, acidity, foaming, silicate drop-out and debris while it works to transfer heat and maintain the right operating conditions for optimal fuel economy. Our coolant filters allow you to choose the method that suits your maintenance practices and schedules.

Engine Liquid Filters

Replacement Filters

Spin-on fiters are available in a variety of medias types and range of efficiency ratings. Donaldson coolant filters help keep hot-running engines cool and reduce downtime.

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Filter Assemblies

A diesel engine depends on its cooling filtration system for protection from damaging temperature extremes and prevention of scale, sludge and corrosion.

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Coolant Additives

It is important to re-charge cooling system after each flush. We offer Supplemental Coolant Additive (SCA and SCA+) to help you maintain cooling system balance.

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Coolant Test Kit


We offer a line of coolant filter accessories such as hoses and test kits to help you maintain cooling system chemical balance.

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Donaldson Coolant Filtration Overview

Donaldson coolant filters remove contaminants and maintain cooling system balance - both key to keeping your engine running efficiently.