Donaldson
The Donaldson P778509 is an industrial process filter element manufactured by Donaldson. It measures 6.15" OD x 3.15" ID x 13.54" long. 9 verified cross-references are available from aftermarket manufacturers.
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9 Cross-References Available
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Technical specifications for the Donaldson P778509 filter element. Data sourced from manufacturer catalogs and verified against OEM documentation.
| Specification | Value |
|---|---|
| Media Type | Cellulose |
| O.D. (inches) | 6.15" |
| I.D. (inches) | 3.15" |
| O.A.L. (inches) | 13.54" |
Last verified: February 2026
9 verified cross-references available. All cross-references are reviewed for dimensional and performance compatibility.
These are equipment manufacturer part numbers that the Donaldson P778509 is a verified replacement for. The original part numbers may appear on equipment nameplates, service manuals, or OEM parts catalogs.
The DONALDSON P778509 is designed for use in industrial filtration applications.
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Last verified: February 2026