ElementRef

Eaton / Internormen · 01.E / 01.N / Easy-Fit · inline line

01.WP 90.10P filter element: specifications & equivalents

The 01.WP 90.10P is a Eaton / Internormen inline-line hydraulic filter element, built with paper (p) media, sized 128 × 175 mm OD × length, rated at 10 µm absolute. Verify against the current manufacturer data sheet before ordering.

Envelope OD × L 128 × 175 mm
Filtration rating 10 µm abs.
Media Paper (P)
Line type inline
Catalog verified. Parameters extracted from the manufacturer’s electronic catalog / official interchange document and checked 2026-09-28. Confidence score 0.90.

Specs come from Eaton's product data hub via its site-search API. The µm retention rating follows ISO 16889 (absolute convention), while the model-code fineness grade is nominal — match both before substituting.

Specification table

ParameterValue
Filter type inline line
Media Paper (P)
Filtration rating 10 µm
Rating basis absolute
Outside diameter OD 128 mm
Length 175 mm
End caps open-ended cartridge element
Integral bypass valve none (housing/valve-dependent)
Seal material Nitrile (Buna-N)
Manufacturer part no. 300002
Source catalog Eaton: Eaton product data hub via site search API (eaton.com)
Last verified2026-09-28

Sources: Eaton — Eaton product data hub via site search API (eaton.com) — accessed 2026-09-29.

Eaton / Internormen® and all model designations are trademarks of their respective owners, used here for identification only — ElementRef is an independent reference site, not an authorized Eaton / Internormen distributor.

Dimensions & series range

Outside diameter128 mm (5.039 in)
Overall length175 mm (6.890 in)

All 128×175 mm interchange elements →

Cross references & equivalents

Equivalent modelBrandMatch levelNote
↔ 21169
page in verification queue
AftermarketpartialEaton's filtration cross-reference lists 21169 (Parker) as an interchange for 01.WP 90.10P. Envelope cross-reference; verify micron grade, delta-P 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 01.WP 90.10P model number is decoded

  • 01.WP 90.10PEaton Easy-Fit filter element model code (Eaton Easy-Fit Exchange Filter Element).
  • 300002Eaton catalog number (order code) for the same element.
  • 10 PFilter fineness grade: nominal rating and media letter.
  • 10 µmISO 16889 multipass retention rating as published by Eaton.
  • Paper (P)Filter media execution.
  • Nitrile (Buna-N)Seal compound.
  • 128 mmOuter diameter.
  • 175 mmElement height.

Typical equipment & applications

  • Medium-pressure in-line and lubrication circuits
  • Spin-on and exchange element replacements

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).
  • 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 are the dimensions of the 01.WP 90.10P filter element?
The published envelope is 128 mm OD × 175 mm length (5.039 × 6.890 in). Confirm against the housing drawing before ordering.
What micron rating does 01.WP 90.10P use?
This element is rated 10 µm absolute. Always compare Beta ratings at the same test point: two brands may print different micron numbers for the same physical grade.
What replaces the 01.WP 90.10P filter element?
1 partial match(es) requiring parameter review
How do I read the 01.WP 90.10P part number?
See the designation decoder above: each segment of 01WP9010P 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.

Same-envelope elements from other brands

View full interchange →

These 7 catalog element(s) share the 128×175 mm envelope. Envelope match alone does not guarantee interchangeability — compare micron/Beta, seals and collapse rating.

01.WP 90.10VG.E.P Eaton / Internormen · 10 µm 01.WP 90.25VG.E.P Eaton / Internormen · 20 µm 01.WP 95/100.3VL.P Eaton / Internormen · 3 µm HF7935 Fleetguard · 35 µm WD13008X MANN-FILTER WD13011X MANN-FILTER 51735 WIX Filters · 11 µm

Other models in the 01.E / 01.N / Easy-Fit series

All 3329 →
01.1910.40G.16.E.O.SON 44×110 mm 01.20213.130G.E.O 102×202 mm 01.21657.25VG.10.B.N.IS09 140×459 mm 01.41542.25VG.16.B.N.IS09 90×558 mm · 20 µm 01.AS 180.250G.-.E.T.- 80×315 mm · 250 µm 01.AS 180.40G.-.E.T.- 80×315 mm · 40 µm 01.AS 180.80G.-.E.T.- 80×315 mm · 80 µm 01.AS 220.130G.-.B.-.- 79×274 mm · 130 µm 01.AS 220.250G.-.B.-.- 79×274 mm · 250 µm 01.AS 220.25G.-.B.-.- 79×274 mm · 25 µm

Reviewed & verified by the ElementRef engineering desk against Eaton on 2026-09-28. Read our editorial & correction policy.