Fleetguard · HF Hydraulic · inline line
HF6906 filter element: specifications & equivalents
The HF6906 is a Fleetguard inline-line hydraulic filter element, sized 73.5 × 227 mm OD × length (ID 40.5 mm), rated at 48 µm absolute (48 µm at β75(c) per ISO 16889). Verify against the current manufacturer data sheet before ordering.
Envelope OD × L 73.5 × 227 mm
Inside diameter 40.5 mm
Filtration rating 48 µm abs.
Beta rating 48 µm at β75(c) per ISO 16889
Collapse / burst 30 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
| Parameter | Value |
|---|---|
| Filter type | inline line |
| Filtration rating | 48 µm |
| Rating basis | absolute |
| Beta ratio | 48 µm at β75(c) per ISO 16889 |
| Outside diameter OD | 73.5 mm |
| Inside diameter ID | 40.5 mm |
| Length | 227 mm |
| End caps | open-ended cartridge element |
| Rated flow | 225 L/min |
| Collapse / burst pressure | 30 bar |
| Integral bypass valve | none (housing/valve-dependent) |
| Manufacturer part no. | HF6906 |
| 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.
Dimensions & series range
| Outside diameter | 73.5 mm (2.894 in) |
| Inside diameter | 40.5 mm (1.594 in) |
| Overall length | 227 mm (8.937 in) |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
|
↔ 2225P10 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 2225P10 as an interchange for HF6906. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 2225P10A000P page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 2225P10A000P as an interchange for HF6906. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 2225P25 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 2225P25 as an interchange for HF6906. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 2225P25A000P page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 2225P25A000P as an interchange for HF6906. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 2225P25P page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 2225P25P as an interchange for HF6906. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ HF0690600 page in verification queue | Fleetguard | partial | Fleetguard's online catalog lists HF0690600 as an interchange for HF6906. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
| ↔ SS-070-K-20-B | STAUFF | partial | Fleetguard's online catalog lists SS070K20B as an interchange for HF6906. 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 HF6906 model number is decoded
- HF6906Fleetguard HF-series hydraulic cartridge element part number.
- 227 mmOverall height.
- 73.5 mmLargest outside diameter.
- 40.5 mmLargest end inside diameter.
- 48 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 are the dimensions of the HF6906 filter element?
The published envelope is 73.5 mm OD × 227 mm length with a 40.5 mm inside diameter (2.894 × 8.937 in × 1.594 in ID). Confirm against the housing drawing before ordering.
What micron rating does HF6906 use?
This element is rated 48 µm absolute — 48 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 HF6906 filter element?
7 partial match(es) requiring parameter review
How do I read the HF6906 part number?
See the designation decoder above: each segment of HF6906 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.