Fleetguard · HF Hydraulic · inline line
HF6187 filter element: specifications & equivalents
The HF6187 is a Fleetguard inline-line hydraulic filter element, rated at 23 µm absolute (23 µm at β75(c) per ISO 16889). Verify against the current manufacturer data sheet before ordering.
Inside diameter 152.65 mm
Filtration rating 23 µm abs.
Beta rating 23 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 | 23 µm |
| Rating basis | absolute |
| Beta ratio | 23 µm at β75(c) per ISO 16889 |
| Inside diameter ID | 152.65 mm |
| Length | 457.2 mm |
| End caps | open-ended cartridge element |
| Integral bypass valve | none (housing/valve-dependent) |
| Manufacturer part no. | HF6187 |
| 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 |
|---|---|---|---|
|
↔ 1425 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 1425 as an interchange for HF6187. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 1530600 page in verification queue | UFI | partial | Fleetguard's online catalog lists 1530600 as an interchange for HF6187. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 1679 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 1679 as an interchange for HF6187. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 2109 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 2109 as an interchange for HF6187. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 25012481 page in verification queue | UFI | partial | Fleetguard's online catalog lists 25012481 as an interchange for HF6187. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 25012482 page in verification queue | UFI | partial | Fleetguard's online catalog lists 25012482 as an interchange for HF6187. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 2L970 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 2L970 as an interchange for HF6187. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 3I0667 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 3I0667 as an interchange for HF6187. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 51425 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 51425 as an interchange for HF6187. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
| ↔ 51677 | WIX Filters | partial | Fleetguard's online catalog lists 51677 as an interchange for HF6187. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
| ↔ 51679 | WIX Filters | partial | Fleetguard's online catalog lists 51679 as an interchange for HF6187. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 551425 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 551425 as an interchange for HF6187. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 551677 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 551677 as an interchange for HF6187. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 6439368 page in verification queue | UFI | partial | Fleetguard's online catalog lists 6439368 as an interchange for HF6187. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 6439369 page in verification queue | UFI | partial | Fleetguard's online catalog lists 6439369 as an interchange for HF6187. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 85425 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 85425 as an interchange for HF6187. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 85677 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 85677 as an interchange for HF6187. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 85679 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 85679 as an interchange for HF6187. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 92425 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 92425 as an interchange for HF6187. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 92679 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 92679 as an interchange for HF6187. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 945989 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 945989 as an interchange for HF6187. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 947400 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 947400 as an interchange for HF6187. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ C1719 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists C1719 as an interchange for HF6187. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ FH19 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists FH19 as an interchange for HF6187. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ H66040 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists H66040 as an interchange for HF6187. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ HEM6065 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists HEM6065 as an interchange for HF6187. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ HF0618700 page in verification queue | Fleetguard | partial | Fleetguard's online catalog lists HF0618700 as an interchange for HF6187. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ HF802 page in verification queue | Fleetguard | partial | Fleetguard's online catalog lists HF802 as an interchange for HF6187. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ L210 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists L210 as an interchange for HF6187. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ L970 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists L970 as an interchange for HF6187. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ LH4911 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists LH4911 as an interchange for HF6187. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ LP153 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists LP153 as an interchange for HF6187. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ P601820AX8 page in verification queue | Donaldson | partial | Fleetguard's online catalog lists P601820AX8 as an interchange for HF6187. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ P779943 page in verification queue | Donaldson | partial | Fleetguard's online catalog lists P779943 as an interchange for HF6187. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ PF1139 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists PF1139 as an interchange for HF6187. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ PF840 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists PF840 as an interchange for HF6187. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ PH060 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists PH060 as an interchange for HF6187. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ PM6040 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists PM6040 as an interchange for HF6187. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
| ↔ PT491 | Baldwin Filters | partial | Fleetguard's online catalog lists PT491 as an interchange for HF6187. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
| ↔ PT491 | Baldwin Filters | partial | Baldwin's Form 561 Number-Finder cross-reference lists HF6187 (FLEETGUARD) as replaced by Baldwin PT491. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ PT4912 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists PT4912 as an interchange for HF6187. 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 HF6187 model number is decoded
- HF6187Fleetguard HF-series hydraulic cartridge element part number.
- 457.2 mmOverall height.
- 152.65 mmLargest end inside diameter.
- 23 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 HF6187 use?
This element is rated 23 µm absolute — 23 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 HF6187 filter element?
41 partial match(es) requiring parameter review
How do I read the HF6187 part number?
See the designation decoder above: each segment of HF6187 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.