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    • Donaldson

    Donaldson Duramax Hydraulic Filters & Head Assemblies

    Donaldson is a global leader in filtration technology, and their Duramax hydraulic filter line is one of the most widely specified spin-on filter systems in mobile and industrial hydraulic equipment. NextDayFittings.com stocks 56 Donaldson Duramax part numbers covering spin-on filter elements and head assemblies across the HMK03, HMK04/24, and HMK05/25 filter sizes in both standard and OEM-specific configurations. Our inventory includes direct-fit elements for CASE, KOMATSU, CLARK, HOLLAND, and JCB equipment alongside universal replacement elements, and we stock SAE-12, SAE-16, and SAE-20 head assemblies in multiple port configurations. The Duramax system uses a simple spin-on design that makes filter changes fast and clean, with bypass valve protection built into the head assembly. We also carry the Donaldson P149099 Vacuator valve for air intake contamination control. For help identifying the correct Donaldson filter for your application or equipment, call our team at 1(844)323-8752.

    HMK03 Filters HMK04/24 Filters HMK05/25 Filters SAE Filter Heads OEM Cross-Reference Vacuator Valves
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