Fleetguard · HF Hydraulic · inline line
HF6257 filter element: specifications & equivalents
The HF6257 is a Fleetguard inline-line hydraulic filter element, rated at 140 µm absolute (140 µm at β75(c) per ISO 16889). Verify against the current manufacturer data sheet before ordering.
Inside diameter 128.59 mm
Filtration rating 140 µm abs.
Beta rating 140 µm at β75(c) per ISO 16889
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
| Parameter | Value |
|---|---|
| Filter type | inline line |
| Filtration rating | 140 µm |
| Rating basis | absolute |
| Beta ratio | 140 µm at β75(c) per ISO 16889 |
| Inside diameter ID | 128.59 mm |
| Length | 300.04 mm |
| End caps | open-ended cartridge element |
| Integral bypass valve | none (housing/valve-dependent) |
| Manufacturer part no. | HF6257 |
| Source catalog | Cummins Filtration / Fleetguard: Fleetguard online product catalog (fleetguard.com) |
| Last verified | 2026-09-28 |
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.
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
|
↔ 1003100 page in verification queue | UFI | partial | Fleetguard's online catalog lists 1003100 as an interchange for HF6257. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 1220431020 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 1220431020 as an interchange for HF6257. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 2566013 page in verification queue | UFI | partial | Fleetguard's online catalog lists 2566013 as an interchange for HF6257. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 4449K66 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 4449K66 as an interchange for HF6257. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 4455K18 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 4455K18 as an interchange for HF6257. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 49100 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 49100 as an interchange for HF6257. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 514811110 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 514811110 as an interchange for HF6257. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 5169 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 5169 as an interchange for HF6257. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 7062 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 7062 as an interchange for HF6257. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ CFSE100 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists CFSE100 as an interchange for HF6257. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ CFSE100100 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists CFSE100100 as an interchange for HF6257. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ FST1311R0 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists FST1311R0 as an interchange for HF6257. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ H7062 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists H7062 as an interchange for HF6257. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ HAFS100 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists HAFS100 as an interchange for HF6257. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ HF0625700 page in verification queue | Fleetguard | partial | Fleetguard's online catalog lists HF0625700 as an interchange for HF6257. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ OF32410 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists OF32410 as an interchange for HF6257. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ SEC1003100 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists SEC1003100 as an interchange for HF6257. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ SN30010000 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists SN30010000 as an interchange for HF6257. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ SS10024N page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists SS10024N as an interchange for HF6257. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ SS3000 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists SS3000 as an interchange for HF6257. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
| ↔ SS-3-100-3 | Schroeder Industries | partial | Fleetguard's online catalog lists SS31003 as an interchange for HF6257. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ SS5113100A300 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists SS5113100A300 as an interchange for HF6257. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ STR1405M90G2S page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists STR1405M90G2S as an interchange for HF6257. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ STR1405SG2M90 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists STR1405SG2M90 as an interchange for HF6257. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ STR1406M90G2S page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists STR1406M90G2S as an interchange for HF6257. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ STR1406SG2M90 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists STR1406SG2M90 as an interchange for HF6257. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ SUS1005S48 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists SUS1005S48 as an interchange for HF6257. 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 HF6257 model number is decoded
- HF6257Fleetguard HF-series hydraulic cartridge element part number.
- 300.04 mmOverall height.
- 128.59 mmLargest end inside diameter.
- 140 µm at β75(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 micron rating does HF6257 use?
This element is rated 140 µm absolute — 140 µm at β75(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 HF6257 filter element?
27 partial match(es) requiring parameter review
How do I read the HF6257 part number?
See the designation decoder above: each segment of HF6257 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 →Reviewed & verified by the ElementRef engineering desk against Cummins Filtration / Fleetguard on 2026-09-28. Read our editorial & correction policy.