Fleetguard · HF Hydraulic · inline line
HF6418 filter element: specifications & equivalents
The HF6418 is a Fleetguard inline-line hydraulic filter element, rated at 45 µm absolute (45 µm at β75(c) per ISO 16889). Verify against the current manufacturer data sheet before ordering.
Inside diameter 99.82 mm
Filtration rating 45 µm abs.
Beta rating 45 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 | 45 µm |
| Rating basis | absolute |
| Beta ratio | 45 µm at β75(c) per ISO 16889 |
| Inside diameter ID | 99.82 mm |
| Length | 130.05 mm |
| End caps | open-ended cartridge element |
| Integral bypass valve | none (housing/valve-dependent) |
| Manufacturer part no. | HF6418 |
| 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 |
|---|---|---|---|
|
↔ 3107499 page in verification queue | UFI | partial | Fleetguard's online catalog lists 3107499 as an interchange for HF6418. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 83284AA page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 83284AA as an interchange for HF6418. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 93281 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 93281 as an interchange for HF6418. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ C7065 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists C7065 as an interchange for HF6418. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ F1032 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists F1032 as an interchange for HF6418. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ HF0641800 page in verification queue | Fleetguard | partial | Fleetguard's online catalog lists HF0641800 as an interchange for HF6418. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ HF0641800J page in verification queue | Fleetguard | partial | Fleetguard's online catalog lists HF0641800 J as an interchange for HF6418. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ L623 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists L623 as an interchange for HF6418. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ LF366 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists LF366 as an interchange for HF6418. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ P328411 page in verification queue | Donaldson | partial | Fleetguard's online catalog lists P328411 as an interchange for HF6418. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
| ↔ P545 | Baldwin Filters | partial | Fleetguard's online catalog lists P545 as an interchange for HF6418. 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 HF6418 model number is decoded
- HF6418Fleetguard HF-series hydraulic cartridge element part number.
- 130.05 mmOverall height.
- 99.82 mmLargest end inside diameter.
- 45 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 HF6418 use?
This element is rated 45 µm absolute — 45 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 HF6418 filter element?
11 partial match(es) requiring parameter review
How do I read the HF6418 part number?
See the designation decoder above: each segment of HF6418 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.