Proper coolant filtration will reduce wear of cooling system components and extend the life of your engine. Cummins Filtration Non Chemical Water Filters provide efficient protection of your cooling system without chemical components. Determining which water filter is right for your system is important to ensure proper performance. Coolant type used in the system should be taking into consideration. Always contact your OEM manufacturer if you are unsure what coolant type is used in your system. Our cross reference table is crossing Fleetguard filters to many OEM manufacturers so please contact us to find the correct part number.