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MP Filtri · HP / CU / HPX Elements · return line

CU1102A03ANP01 filter element: specifications & equivalents

The CU1102A03ANP01 is a MP Filtri return-line hydraulic filter element, built with inorganic microfiber media, rated at 3 µm absolute. Verify against the current manufacturer data sheet before ordering.

Filtration rating 3 µm abs.
Media Inorganic microfiber
Collapse / burst 20 bar
Line type return
Catalog verified. Parameters extracted from the manufacturer’s electronic catalog / official interchange document and checked 2026-09-28. Confidence score 0.90.

Part number structure and orderable options are taken from the MP Filtri Hydraulic Filtration Catalogue (CAT_HF_EN p.297). This is the standard execution; FPM seals (V) and high-collapse variants (S/H) are orderable under different suffixes. Element dimensions are not available for this series — verify against the current MP Filtri data sheet before ordering.

Specification table

ParameterValue
Filter type return line
Media Inorganic microfiber
Filtration rating 3 µm
Rating basis absolute
End caps open-ended cartridge element
Collapse / burst pressure 20 bar
Integral bypass valve none (housing/valve-dependent)
Seal material Nitrile (Buna-N)
Source catalog MP Filtri: MP Filtri Hydraulic Filtration Catalogue
Last verified2026-09-28

Sources: MP Filtri — MP Filtri Hydraulic Filtration Catalogue — accessed 2026-09-29.

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

Cross references & equivalents

No catalog-verified cross references yet. This model is in the manual verification queue — request a verified equivalent.

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 CU1102A03ANP01 model number is decoded

  • CU110MP Filtri element series and size code for the matched return-line housing family.
  • 2Element length code within the series.
  • A03Filter media: Inorganic microfiber, 3 µm (absolute rating per ISO 16889).
  • ASeals: NBR (nitrile).
  • NElement differential-pressure (collapse) rating: 20 bar standard execution.
  • P01MP Filtri standard catalogue item execution.

Typical equipment & applications

  • Tank-mounted return-line hydraulic filters
  • Hydraulic power units and lubrication systems
  • Construction and agricultural machinery
  • Machine tool and industrial hydraulic systems

Selection pitfalls — read before you substitute

  • A return-line element is not a pressure-line element: return cartridges (BN4HC low-collapse) tolerate roughly 20 bar differential, while BH4HC pressure executions are rated to 210 bar. Installing a low-collapse element in a pressure housing can rupture the media on cold-start spikes.
  • This element has no integral bypass — opening pressure is set by the housing’s reusable bypass valve. Confirm the valve setting (commonly 3.4 bar) is present before fitting.
  • “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 3 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 CU1102A03ANP01 use?
This element is rated 3 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 CU1102A03ANP01 filter element?
Cross references are being verified for this model — use the inquiry form and the engineering desk will confirm equivalents.
How do I read the CU1102A03ANP01 part number?
See the designation decoder above: each segment of CU1102A03ANP01 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 HP / CU / HPX Elements series

All 435 →
CU1101A03ANP01 3 µm CU1101A06ANP01 6 µm CU1101A10ANP01 10 µm CU1101A16ANP01 16 µm CU1101A25ANP01 25 µm CU1101M25ANP01 25 µm CU1101M60ANP01 60 µm CU1101M90ANP01 90 µm CU1101P10ANP01 10 µm CU1101P25ANP01 25 µm

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