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Fleetguard · HF Hydraulic · inline line

HF35540 filter element: specifications & equivalents

The HF35540 is a Fleetguard inline-line hydraulic filter element, sized 120 × 383 mm OD × length (ID 84 mm), rated at 10 µm absolute (10 µm at β75(c); 12 µm at β200(c) per ISO 16889). Verify against the current manufacturer data sheet before ordering.

Envelope OD × L 120 × 383 mm
Inside diameter 84 mm
Filtration rating 10 µm abs.
Beta rating 10 µm at β75(c); 12 µm at β200(c) per ISO 16889
Collapse / burst 6 bar
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.

Specifications and cross-references are taken from the Fleetguard online catalog API. Where both TWA and Beta ratings are published the conventions differ — verify cleanliness targets, collapse rating and seal configuration against the current Fleetguard data sheet before ordering.

Specification table

ParameterValue
Filter type inline line
Filtration rating 10 µm
Rating basis absolute
Beta ratio 10 µm at β75(c); 12 µm at β200(c) per ISO 16889
Outside diameter OD 120 mm
Inside diameter ID 84 mm
Length 383 mm
End caps open-ended cartridge element
Rated flow 108 L/min
Collapse / burst pressure 6 bar
Integral bypass valve none (housing/valve-dependent)
Manufacturer part no. HF35540
Source catalog Cummins Filtration / Fleetguard: Fleetguard online product catalog (fleetguard.com)
Last verified2026-09-28

Sources: Cummins Filtration / Fleetguard — Fleetguard online product catalog (fleetguard.com) — accessed 2026-09-28.

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

Dimensions & series range

Outside diameter120 mm (4.724 in)
Inside diameter84 mm (3.307 in)
Overall length383 mm (15.079 in)

Cross references & equivalents

Equivalent modelBrandMatch levelNote
↔ 2667796
page in verification queue
UFIpartialFleetguard's online catalog lists 2667796 as an interchange for HF35540. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ SH66277
page in verification queue
AftermarketpartialFleetguard's online catalog lists SH66277 as an interchange for HF35540. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ WEH021
page in verification queue
AftermarketpartialFleetguard's online catalog lists WEH021 as an interchange for HF35540. 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 HF35540 model number is decoded

  • HF35540Fleetguard HF-series hydraulic cartridge element part number.
  • 383 mmOverall height.
  • 120 mmLargest outside diameter.
  • 84 mmLargest end inside diameter.
  • 10 µm at β75(c); 12 µm at β200(c) per ISO 16889Published efficiency ratings.

Typical equipment & applications

  • Construction, agricultural and industrial hydraulic circuits
  • Mobile-equipment hydraulic return and pressure lines

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 HF35540 filter element?
The published envelope is 120 mm OD × 383 mm length with a 84 mm inside diameter (4.724 × 15.079 in × 3.307 in ID). Confirm against the housing drawing before ordering.
What micron rating does HF35540 use?
This element is rated 10 µm absolute — 10 µm at β75(c); 12 µm at β200(c) per ISO 16889. Always compare Beta ratings at the same test point: two brands may print different micron numbers for the same physical grade.
What replaces the HF35540 filter element?
3 partial match(es) requiring parameter review
How do I read the HF35540 part number?
See the designation decoder above: each segment of HF35540 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 HF Hydraulic series

All 2621 →
HF28084 HF28086 HF28088 HF28201 HF28202 97×247 mm HF28652 HF28658 95×193 mm HF28660 HF28662 HF28667

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