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Coolant

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

Donaldson's replacement coolant filters keep engines running cool and reduce downtime. Spin-on filters are available in a variety of media types and efficiency ratings.

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Filter Assemblies

Donaldson coolant assemblies extend cooling system life, utilizing a single remote mount coolant filter head designed to fit our spin-on filters with 11/16”-16 threads.

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Coolant Additives

Diesel engine coolant additives from Donaldson re-charge your cooling system after each flush. Additives are available in many sizes, from a pint to a 55-gallon drum.

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Coolant Test Kit

Accessories

Donaldson offers a complete line of diesel engine cooling system components, including 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. This module provides an in-depth look at engine coolant system considerations and the advantages of Donaldson coolant filters.