Fleetguard · HF Hydraulic · inline line
HF6266 filter element: specifications & equivalents
The HF6266 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 | 301.62 mm |
| End caps | open-ended cartridge element |
| Rated flow | 378.7 L/min |
| Integral bypass valve | none (housing/valve-dependent) |
| Manufacturer part no. | HF6266 |
| 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 |
|---|---|---|---|
|
↔ 1003100RV3 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 1003100RV3 as an interchange for HF6266. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 49100R3 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 49100R3 as an interchange for HF6266. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 51481111003 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 51481111003 as an interchange for HF6266. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 5220 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 5220 as an interchange for HF6266. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 7062RV3 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 7062RV3 as an interchange for HF6266. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ CFSE1001003 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists CFSE1001003 as an interchange for HF6266. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ CFSE1003 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists CFSE1003 as an interchange for HF6266. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ FST1311RX page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists FST1311RX as an interchange for HF6266. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ H7062RV3 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists H7062RV3 as an interchange for HF6266. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ HF0626600 page in verification queue | Fleetguard | partial | Fleetguard's online catalog lists HF0626600 as an interchange for HF6266. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ OF3243RV10 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists OF3243RV10 as an interchange for HF6266. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ P169020 page in verification queue | Donaldson | partial | Fleetguard's online catalog lists P169020 as an interchange for HF6266. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ SEC1003100RV3 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists SEC1003100RV3 as an interchange for HF6266. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ SN30010030 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists SN30010030 as an interchange for HF6266. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ SRS1005S48B page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists SRS1005S48B as an interchange for HF6266. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ SS10024B page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists SS10024B as an interchange for HF6266. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ SS3003 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists SS3003 as an interchange for HF6266. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ SS300G03 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists SS300G03 as an interchange for HF6266. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ SS3100 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists SS3100 as an interchange for HF6266. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ SS5113100B300 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists SS5113100B300 as an interchange for HF6266. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ STR1405BG2M90 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists STR1405BG2M90 as an interchange for HF6266. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ STR1405M90G2B page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists STR1405M90G2B as an interchange for HF6266. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ STR1406BG2M90 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists STR1406BG2M90 as an interchange for HF6266. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ STR1406M90G2B page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists STR1406M90G2B as an interchange for HF6266. 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 HF6266 model number is decoded
- HF6266Fleetguard HF-series hydraulic cartridge element part number.
- 301.62 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 HF6266 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 HF6266 filter element?
24 partial match(es) requiring parameter review
How do I read the HF6266 part number?
See the designation decoder above: each segment of HF6266 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.