Donaldson
Donaldson P550043
Industrial filter element
Donaldson P550043 specifications
The Donaldson P550043 is a 20µm filter element. It measures 5.81" OD x 1" ID x 9.37" long. Collapse pressure rating is 75 PSID. 21 verified cross-references are available from aftermarket manufacturers. Specifications verified. Last reviewed: May 2026
Physical fit
- Outer Diameter (O.D.)
- 5.81"OEM-published
- Inner Diameter (I.D.)
- 1"OEM-published
- Overall Length
- 9.37"OEM-published
- Micron Rating
- 20µmOEM-published
- Seal Material
- Not yet verified from an OEM source
- Connection / Thread
- Not yet verified from an OEM source
Performance: Donaldson published values
These are Donaldson's own published numbers. Performance specs differ by brand and are never inherited across cross-references.
- Collapse Rating
- 75 PSID
About the Donaldson P550043
FUEL FILTER, CARTRIDGE
What replaces the Donaldson P550043?
21 published cross-references on file. Select to expand.
What replaces the Donaldson P550043?
21 published cross-references on file. Select to expand.
A cross-reference confirms dimensional fit and micron rating, not performance equivalence. Beta ratio, collapse rating, media, and service life can differ between brands.
Published cross-references
| Part Number | Manufacturer | Match |
|---|---|---|
| C208 | — | Verified |
| 162359728 | — | Verified |
| 6581284 | — | Verified |
| 303E630 | — | Verified |
| FE23020 | — | Verified |
| 95144 | — | Verified |
| KF1545 | — | Verified |
| 97101779 | — | Verified |
| 256834 | — | Verified |
| 509 | — | Verified |
| 3000092 | — | Verified |
| 323838C91 | — | Verified |
| 3I1106 | — | Verified |
| 43F | — | Verified |
| 8541840005 | — | Verified |
| 945912 | Parker | Verified |
| 8759112 | — | Verified |
| RD6F4280 | — | Verified |
| GP506 | — | Verified |
| 564 | — | Verified |
| 28-0099 | FilterMart | Sourced |
Application & Compatibility
The DONALDSON P550043 is designed for use in industrial filtration applications. Rated at 20µm.
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
What micron rating is the Donaldson P550043?
What are the dimensions of the Donaldson P550043?
Is there a cross-reference for the Donaldson P550043?
What is the collapse pressure rating of the Donaldson P550043?
How this entry is verified
Every specification on this page names its source: manufacturer documents first, distributor catalogs second, decoded part-number patterns labeled as such. When a value has not been verified from an OEM source, the cell says so. Cross-references are fit claims, never performance claims.
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