Donaldson
Donaldson P566521
Industrial filter element
Donaldson P566521 specifications
The Donaldson P566521 is a 8µm microglass filter element. It measures 3.98" OD x 2.515" ID x 12.43" long. Filtration efficiency is rated at β1000 ≥ 8 per ISO 16889. Seals are VITON, rated for -13°F to 250°F. Collapse pressure rating is 149 PSID. 2 verified cross-references are available from aftermarket manufacturers. Specifications verified. Last reviewed: July 2026
Physical fit
- Outer Diameter (O.D.)
- 3.98"OEM-published
- Inner Diameter (I.D.)
- 2.515"OEM-published
- Overall Length
- 12.43"OEM-published
- Micron Rating
- 8µmOEM-published
- Seal Material
- VITONOEM-published
- 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.
- Efficiency (ISO 16889)
- β1000 ≥ 8
- Media Type
- MICROGLASS
- Collapse Rating
- 149 PSID
- Operating Temperature
- -13°F to 250°F
About the Donaldson P566521
HYDRAULIC FILTER, CARTRIDGE DT
What replaces the Donaldson P566521?
2 published cross-references on file. Select to expand.
What replaces the Donaldson P566521?
2 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 |
|---|---|---|
| HP894L13-6MV | Hy-Pro | Verified |
| SF8904-13-6UMV | Swift Filters | Sourced |
Application & Compatibility
The DONALDSON P566521 is designed for use in hydraulic and lubrication filtration systems. With a 8µm rating, this element is suitable for proportional valve protection and general hydraulic systems. VITON seals provide compatibility with petroleum-based fluids, synthetic fluids, phosphate esters, and water-glycol mixtures.
The 149 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 P566521?
What are the dimensions of the Donaldson P566521?
What seal material does the Donaldson P566521 use?
Is there a cross-reference for the Donaldson P566521?
What is the collapse pressure rating of the Donaldson P566521?
What is the operating temperature range for the Donaldson P566521?
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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