Donaldson
The Donaldson P646921 is an industrial engine filter element manufactured by Donaldson. It measures 15.35" OD x 8.7" ID x 24.71" long. 5 verified cross-references are available from aftermarket manufacturers.
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5 Cross-References Available
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Technical specifications for the Donaldson P646921 filter element. Data sourced from manufacturer catalogs and verified against OEM documentation.
| Specification | Value |
|---|---|
| O.D. (inches) | 15.35" |
| I.D. (inches) | 8.7" |
| O.A.L. (inches) | 24.71" |
Last verified: February 2026
5 verified cross-references available. All cross-references are reviewed for dimensional and performance compatibility.
These are equipment manufacturer part numbers that the Donaldson P646921 is a verified replacement for. The original part numbers may appear on equipment nameplates, service manuals, or OEM parts catalogs.
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Last verified: February 2026
The DONALDSON P646921 is designed for use in engine filtration systems including oil, fuel, air intake, and coolant applications.
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