Donaldson · Hydraulic Catalog · inline line
P573125 filter element: specifications & equivalents
The P573125 is a Donaldson inline-line hydraulic filter element, rated at 4 µm class. Verify against the current manufacturer data sheet before ordering.
Filtration rating 4 µm nom.
Line type inline
Partially verified. Fit and grade trace to an official interchange document;
dimensional values are compiled from 0 aftermarket listing(s)
and must be confirmed against the manufacturer housing drawing. Confidence score 0.85.
Envelope dimensions, media type, collapse pressure and bypass settings are not printed in the competitive cross-reference tables. Verify against the current Donaldson data sheet and housing dimension page before ordering.
Specification table
| Parameter | Value |
|---|---|
| Filter type | inline line |
| Filtration rating | 4 µm |
| Rating basis | nominal |
| Integral bypass valve | none (housing/valve-dependent) |
| Manufacturer part no. | P573125 |
| Source catalog | Donaldson Company: Hydraulic Filtration Product Guide (F112100-ENG) |
| Last verified | 2026-09-28 |
Sources: Donaldson Company — Hydraulic Filtration Product Guide (F112100-ENG) — accessed 2026-09-27.
Donaldson® and all model designations are trademarks of their respective owners, used here for identification only — ElementRef is an independent reference site, not an authorized Donaldson distributor.
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
|
↔ 12220D03RT page in verification queue | Aftermarket | partial | Donaldson's F112100-ENG Competitive Cross-Reference table lists 1.22.20D03RT (HYDAC) as an interchange for the Donaldson P573125 element. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 1297084 page in verification queue | UFI | partial | Donaldson's F112100-ENG Competitive Cross-Reference table lists 1297084 or 1.22.20D03RT (HYDAC) as an interchange for the Donaldson P573125 element. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
| ↔ SBFUE619-20Z3V | Schroeder Industries | partial | Donaldson's F112100-ENG Competitive Cross-Reference table lists SBFUE619-20Z3V (Schroeder) as an interchange for the Donaldson P573125 element. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
| ↔ UE610AZ20Z | Pall | partial | Donaldson's F112100-ENG Competitive Cross-Reference table lists UE610AZ20Z (Pall) as an interchange for the Donaldson P573125 element. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
| ↔ UE619AZ20H | Pall | partial | Donaldson's F112100-ENG Competitive Cross-Reference table lists UE619AZ20H or Z (Pall) as an interchange for the Donaldson P573125 element. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
Interchange levels: full catalog-confirmed drop-in · partial verify parameters · verify manual confirmation required. Links resolve to the equivalent model's specification page where available.
How the P573125 model number is decoded
- P573125Donaldson hydraulic filter element part number per the Hydraulic Filtration Product Guide (F112100-ENG) Competitive Cross-Reference tables.
- 4 μmNominal filtration rating (< 4 μm).
Typical equipment & applications
- Donaldson hydraulic filter element per the F112100-ENG Competitive Cross-Reference tables.
Selection pitfalls — read before you substitute
- “10 µm nominal” and “12 µm at β1000” can describe the very same media — one is reported at β≥200, the other at β≥1000 per ISO 16889. Compare ratings at the same Beta test point, not just the printed micron number.
- Nitrile (NBR) seals are standard for mineral hydraulic oil but fail early in some phosphate-ester fluids and at sustained high temperature; verify seal compound against the fluid data sheet (fluorocarbon/Viton executions may be required).
- Fine 4 µm media loads faster and runs at a higher cold Δp than coarser grades — only downgrade cleanliness targets if the system ISO 4406 code allows it.
- End-cap geometry and the number/position of O-rings block interchange even when OD and length match — visually compare end caps before fitting, especially with aftermarket cartridges.
Frequently asked questions
What micron rating does P573125 use?
This element is rated 4 µm (nominal class). Always compare Beta ratings at the same test point: two brands may print different micron numbers for the same physical grade.
What replaces the P573125 filter element?
5 partial match(es) requiring parameter review
How do I read the P573125 part number?
See the designation decoder above: each segment of P573125 encodes size, line type, filtration grade and media/collapse execution.
Is a same-envelope aftermarket element always a drop-in replacement?
No. Matching OD and length only proves the cartridge fits the bowl. End-cap style, seal compound, micron/Beta rating, collapse pressure and bypass configuration must also match; the table above tags every equivalent as full, partial or verify for exactly this reason.
How often should a hydraulic return-line element be replaced?
Replace at the housing manufacturer’s recommended differential-pressure setting (commonly signalled by a clogging indicator), or on a time-based service interval when no indicator is fitted — never wait for bypass to open continuously, because unfiltered oil then reaches the valves.
Other models in the Hydraulic Catalog series
All 360 →Reviewed & verified by the ElementRef engineering desk against Donaldson Company on 2026-09-28. Read our editorial & correction policy.