Donaldson
Donaldson P550781
The Donaldson P550781 is a 1µm hydraulic filter element. It measures 3.99" OD x 1.1" ID x 5.06" long. Filtration efficiency is rated at 2 per ISO 16889. 3 verified cross-references are available from aftermarket manufacturers.
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What are the specifications of the Donaldson P550781?
Technical specifications for the Donaldson P550781 filter element. Data sourced from manufacturer catalogs and verified against OEM documentation.
| Specification | Value |
|---|---|
| Performance | |
| Micron Rating | 1µm |
| Efficiency (ISO 16889) | 2 |
| Dimensions | |
| O.D. (inches) | 3.99" |
| I.D. (inches) | 1.1" |
| O.A.L. (inches) | 5.06" |
Last verified: February 2026
What replaces the Donaldson P550781?
3 verified replacements available
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 P550781 is designed for use in hydraulic and lubrication filtration systems. With a 1µm rating, this element is suitable for servo valve protection and high-precision hydraulic systems.
Frequently Asked Questions
What micron rating is the Donaldson P550781?
What are the dimensions of the Donaldson P550781?
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