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Filter Assemblies

A diesel engine depends on its cooling system for protection from damaging temperature extremes and prevention of scale, sludge and corrosion. Donaldson coolant filter assemblies utilize a single remote mount head designed to fit our spin-on filters. Apply a Donaldson remote mount coolant assembly for ease of service and extended life for your cooling system components.


  • Traditional coolant systems – Supplemental Coolant Additive (SCA & SCA+)
  • Organic acid coolant systems – Organic acid technology (OAT)
  • Hybrid coolant systems – blend of traditional and organic coolant


  • Dependable, leak-free performance
  • Easy to service, no special tools needed – removing and replacing spin-on filters is hassle free
  • Wide range of efficiency ratings – you can rely on Donaldson’s advanced filtration technology to provide the performance needed
  • Mix and match system of in-stock head and filters – create the system to fit your cooling system needs


  • Standard design, side mount, single port head, 3/8 in. NPT ports (2x)
  • Spin-on filter
  • Remote mount for ease of service
  • Molded elastomer seals to withstand extreme cold and heat

Available Media Types

  • Donaldson exclusive Synteq™ – synthetic fiber media for greater filtration efficiency and higher dust-holding capacity
  • Cellulose
This servicing information is provided as a best practices guide. It is not intended to replace or supersede the service instructions supplied by your engine or equipment manufacturer.
  1. Remove radiator cap; use caution if hot or under pressure.

  2. Unscrew and remove old filter and gasket.
    Properly dispose of the used filter according to local regulations.

  3. Wipe filter head with clean cloth.

  4. Apply a thin film of clean motor oil to the gasket.

  5. Align threads and spin on filter until gasket contact.

  6. Follow icons on filter to tighten.

  7. Pour coolant mix into overflow.

  8. Start engine and check for leaks.

  9. Test coolant according to type.

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.

Donaldson Coolant Filter Servicing

Donaldson provides best practices and recommended steps for coolant filter servicing to help maintain a healthy engine coolant system.