Fleetguard · HF Hydraulic · inline line
HF6481 filter element: specifications & equivalents
The HF6481 is a Fleetguard inline-line hydraulic filter element. Verify against the current manufacturer data sheet before ordering.
Inside diameter 113.79 mm
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 |
| Inside diameter ID | 113.79 mm |
| Length | 246.89 mm |
| End caps | open-ended cartridge element |
| Integral bypass valve | none (housing/valve-dependent) |
| Manufacturer part no. | HF6481 |
| 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 |
|---|---|---|---|
|
↔ 1542 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 1542 as an interchange for HF6481. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 1862 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 1862 as an interchange for HF6481. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 2191 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 2191 as an interchange for HF6481. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 25012487 page in verification queue | UFI | partial | Fleetguard's online catalog lists 25012487 as an interchange for HF6481. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 3I0684 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 3I0684 as an interchange for HF6481. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 51542 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 51542 as an interchange for HF6481. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
| ↔ 51862 | WIX Filters | partial | Fleetguard's online catalog lists 51862 as an interchange for HF6481. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 551542 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 551542 as an interchange for HF6481. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 551862 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 551862 as an interchange for HF6481. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 85542 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 85542 as an interchange for HF6481. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 85862 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 85862 as an interchange for HF6481. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 92542 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 92542 as an interchange for HF6481. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 92862 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 92862 as an interchange for HF6481. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ AT120544 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists AT120544 as an interchange for HF6481. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ AT125044 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists AT125044 as an interchange for HF6481. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ AT42067 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists AT42067 as an interchange for HF6481. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ AT77091 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists AT77091 as an interchange for HF6481. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ AT77901 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists AT77901 as an interchange for HF6481. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ CE1245HT page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists CE1245HT as an interchange for HF6481. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ CH6642 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists CH6642 as an interchange for HF6481. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ H55033 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists H55033 as an interchange for HF6481. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ H56055 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists H56055 as an interchange for HF6481. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ HF0648100 page in verification queue | Fleetguard | partial | Fleetguard's online catalog lists HF0648100 as an interchange for HF6481. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ HF893 page in verification queue | Fleetguard | partial | Fleetguard's online catalog lists HF893 as an interchange for HF6481. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ L635 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists L635 as an interchange for HF6481. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ LF274 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists LF274 as an interchange for HF6481. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ P164820 page in verification queue | Donaldson | partial | Fleetguard's online catalog lists P164820 as an interchange for HF6481. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ P165234 page in verification queue | Donaldson | partial | Fleetguard's online catalog lists P165234 as an interchange for HF6481. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ P165314 page in verification queue | Donaldson | partial | Fleetguard's online catalog lists P165314 as an interchange for HF6481. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ P166506 page in verification queue | Donaldson | partial | Fleetguard's online catalog lists P166506 as an interchange for HF6481. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ PF1121 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists PF1121 as an interchange for HF6481. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ PM6055 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists PM6055 as an interchange for HF6481. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ PT482 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists PT482 as an interchange for HF6481. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ PT482MPG page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists PT482MPG as an interchange for HF6481. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ PT53210 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists PT53210 as an interchange for HF6481. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ PT725MPG page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists PT725MPG as an interchange for HF6481. 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 HF6481 model number is decoded
- HF6481Fleetguard HF-series hydraulic cartridge element part number.
- 246.89 mmOverall height.
- 113.79 mmLargest end inside diameter.
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 replaces the HF6481 filter element?
36 partial match(es) requiring parameter review
How do I read the HF6481 part number?
See the designation decoder above: each segment of HF6481 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.