Donaldson
Donaldson P166597
HDK06 series filter element
Donaldson P166597 specifications
The Donaldson P166597 is a 50µm synthetic filter element. It measures 4.39" OD x 2.44" ID x 16" long. Filtration efficiency is rated at β1000 ≥ 50 per ISO 16889. Collapse pressure rating is 125 PSID. 21 verified cross-references are available from aftermarket manufacturers. Specifications verified. Last reviewed: July 2026
Physical fit
- Outer Diameter (O.D.)
- 4.39"Verified via cross-reference
- Inner Diameter (I.D.)
- 2.44"Verified via cross-reference
- Overall Length
- 16"Verified via cross-reference
- Micron Rating
- 50µmVerified via cross-reference
- Seal Material
- Not yet verified from an OEM source
- Connection / Thread
- CartridgeVerified via cross-reference
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 ≥ 50
- Media Type
- Synthetic
- Collapse Rating
- 125 PSID
- Series
- HDK06
About the Donaldson P166597
HYDRAULIC FILTER, CARTRIDGE
What replaces the Donaldson P166597?
21 published cross-references on file. Select to expand.
What replaces the Donaldson P166597?
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 |
|---|---|---|
| HP79L16-40MB | Hy-Pro | Verified |
| PF1159 | — | Verified |
| 92529 | — | Verified |
| 52050 | — | Verified |
| 9437100156 | — | Verified |
| 3I1913 | — | Verified |
| 7216047000 | — | Verified |
| FPS333011 | — | Verified |
| HEM6038 | — | Verified |
| FA275H | — | Verified |
| 4208000 | — | Verified |
| 9576P160116 | — | Verified |
| 3R1750W | — | Verified |
| 1245424H1 | — | Verified |
| 2109660 | Gardner Denver | Verified |
| HD8730 | — | Verified |
| 35251040 | — | Verified |
| 1816389 | — | Verified |
| L415 | — | Verified |
| 21091 | — | Verified |
| 05-5803 | FilterMart | Sourced |
Application & Compatibility
The DONALDSON P166597 is designed for use in hydraulic and lubrication filtration systems. With a 50µm rating, this element is suitable for pump and component protection in industrial hydraulic circuits.
The 125 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 P166597?
What are the dimensions of the Donaldson P166597?
Is there a cross-reference for the Donaldson P166597?
What is the collapse pressure rating of the Donaldson P166597?
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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