Donaldson
Donaldson P550944
The Donaldson P550944 is a 38µm cellulose engine & mobile filter element. It measures 3.7" OD x 3.1" ID x 5.41" long. Filtration efficiency is rated at 2 per ISO 16889. Collapse pressure rating is 75 PSID. 21 verified cross-references are available from aftermarket manufacturers.
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What are the specifications of the Donaldson P550944?
Technical specifications for the Donaldson P550944 filter element. Data sourced from manufacturer catalogs and verified against OEM documentation.
| Specification | Value |
|---|---|
| Performance | |
| Micron Rating | 38µm |
| Media Type | Cellulose |
| Efficiency (ISO 16889) | 2 |
| Collapse Rating | 75 PSID |
| Dimensions | |
| O.D. (inches) | 3.7" |
| I.D. (inches) | 3.1" |
| O.A.L. (inches) | 5.41" |
Last verified: February 2026
What replaces the Donaldson P550944?
21 verified replacements available from FilterMart
All cross-references are reviewed for dimensional and performance compatibility. Enter your info below to receive the full cross-reference report.
Application & Compatibility
The DONALDSON P550944 is designed for use in industrial filtration applications. Rated at 38µm.
The 75 PSID collapse rating indicates the maximum differential pressure this element can withstand during cold starts or bypass conditions without structural failure. Ensure your system's maximum differential pressure does not exceed this rating.
Frequently Asked Questions
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