Donaldson
Donaldson P551421
The Donaldson P551421 is a 3µm composite engine & mobile filter element. It measures 3.15" OD x 0.91" ID x 6.07" long. 10 verified cross-references are available from aftermarket manufacturers.
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What are the specifications of the Donaldson P551421?
Technical specifications for the Donaldson P551421 filter element. Data sourced from manufacturer catalogs and verified against OEM documentation.
| Specification | Value |
|---|---|
| Performance | |
| Micron Rating | 3µm |
| Media Type | Composite |
| Dimensions | |
| O.D. (inches) | 3.15" |
| I.D. (inches) | 0.91" |
| O.A.L. (inches) | 6.07" |
Last verified: February 2026
What replaces the Donaldson P551421?
10 verified replacements available
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Application & Compatibility
The DONALDSON P551421 is designed for use in industrial filtration applications. Rated at 3µm.
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