Fleetguard · HF Hydraulic · return line
HF6326 filter element: specifications & equivalents
The HF6326 is a Fleetguard return-line hydraulic filter element, sized 130 × 181.5 mm OD × length, rated at 35 µm absolute (35 µm at β75(c) per ISO 16889). Verify against the current manufacturer data sheet before ordering.
Envelope OD × L 130 × 181.5 mm
Filtration rating 35 µm abs.
Beta rating 35 µm at β75(c) per ISO 16889
Line type return
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 | return line |
| Filtration rating | 35 µm |
| Rating basis | absolute |
| Beta ratio | 35 µm at β75(c) per ISO 16889 |
| Outside diameter OD | 130 mm |
| Length | 181.5 mm |
| End caps | spin-on baseplate with attached gasket |
| Flow direction | outside-in |
| Integral bypass valve | none (housing/valve-dependent) |
| Manufacturer part no. | HF6326 |
| 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 | 130 mm (5.118 in) |
| Overall length | 181.5 mm (7.146 in) |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
|
↔ 120501 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 120501 as an interchange for HF6326. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 32901401 page in verification queue | UFI | partial | Fleetguard's online catalog lists 32901401 as an interchange for HF6326. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 3796 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 3796 as an interchange for HF6326. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
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↔ 3I1811 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 3I1811 as an interchange for HF6326. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
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↔ 405399 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 405399 as an interchange for HF6326. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
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↔ 457609 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 457609 as an interchange for HF6326. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
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↔ 7508 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 7508 as an interchange for HF6326. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
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↔ 7R90P10 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 7R90P10 as an interchange for HF6326. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 8401041 page in verification queue | UFI | partial | Fleetguard's online catalog lists 8401041 as an interchange for HF6326. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
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↔ 84239756 page in verification queue | UFI | partial | Fleetguard's online catalog lists 84239756 as an interchange for HF6326. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 88669 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 88669 as an interchange for HF6326. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 89814477 page in verification queue | UFI | partial | Fleetguard's online catalog lists 89814477 as an interchange for HF6326. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
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↔ 9814477 page in verification queue | UFI | partial | Fleetguard's online catalog lists 9814477 as an interchange for HF6326. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
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↔ A220C10 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists A220C10 as an interchange for HF6326. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
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↔ A220C10BM page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists A220C10BM as an interchange for HF6326. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
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↔ BT8450 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists BT8450 as an interchange for HF6326. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
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↔ CA301CD1BM page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists CA301CD1BM as an interchange for HF6326. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
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↔ CA301ECD1M page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists CA301ECD1M as an interchange for HF6326. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
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↔ CA301ECV1M page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists CA301ECV1M as an interchange for HF6326. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
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↔ CA301EFD1M page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists CA301EFD1M as an interchange for HF6326. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
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↔ CAR1601 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists CAR1601 as an interchange for HF6326. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
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↔ CAR1603 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists CAR1603 as an interchange for HF6326. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
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↔ CS1450H1 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists CS1450H1 as an interchange for HF6326. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
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↔ CSM100A page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists CSM100A as an interchange for HF6326. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
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↔ CSM100AN page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists CSM100AN as an interchange for HF6326. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
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↔ CSM100ANR page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists CSM100ANR as an interchange for HF6326. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
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↔ CT100P10A page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists CT100P10A as an interchange for HF6326. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
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↔ CT100P10AB page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists CT100P10AB as an interchange for HF6326. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
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↔ CT100P25A page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists CT100P25A as an interchange for HF6326. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
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↔ CTT100P10A page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists CTT100P10A as an interchange for HF6326. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
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↔ FDB34P10 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists FDB34P10 as an interchange for HF6326. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
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↔ FFPA1105110B page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists FFPA1105110B as an interchange for HF6326. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
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↔ FFPA1105110BP page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists FFPA1105110BP as an interchange for HF6326. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
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↔ FTT05ANA page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists FTT05ANA as an interchange for HF6326. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
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↔ FTT05ANR page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists FTT05ANR as an interchange for HF6326. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
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↔ FTT05BNR page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists FTT05BNR as an interchange for HF6326. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
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↔ HF0632600 page in verification queue | Fleetguard | partial | Fleetguard's online catalog lists HF0632600 as an interchange for HF6326. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
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↔ HF0632600JX page in verification queue | Fleetguard | partial | Fleetguard's online catalog lists HF0632600JX as an interchange for HF6326. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
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↔ LFH8536 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists LFH8536 as an interchange for HF6326. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
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↔ LH8535 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists LH8535 as an interchange for HF6326. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
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↔ LH8536 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists LH8536 as an interchange for HF6326. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
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↔ MF0058101 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists MF0058101 as an interchange for HF6326. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
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↔ MX1591410X4 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists MX1591410X4 as an interchange for HF6326. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
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↔ NT20C010 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists NT20C010 as an interchange for HF6326. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
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↔ NT20C025 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists NT20C025 as an interchange for HF6326. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
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↔ P550269 page in verification queue | Donaldson | partial | Fleetguard's online catalog lists P550269 as an interchange for HF6326. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
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↔ P7559 page in verification queue | Donaldson | partial | Fleetguard's online catalog lists P7559 as an interchange for HF6326. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
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↔ PR4372 page in verification queue | Parker | partial | Fleetguard's online catalog lists PR4372 as an interchange for HF6326. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ PR4373 page in verification queue | Parker | partial | Fleetguard's online catalog lists PR4373 as an interchange for HF6326. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
| ↔ SFCT-5725-E | STAUFF | partial | Fleetguard's online catalog lists SFCT5725E as an interchange for HF6326. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
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↔ SH56376 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists SH56376 as an interchange for HF6326. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ ST1403 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists ST1403 as an interchange for HF6326. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
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↔ TIE3010 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists TIE3010 as an interchange for HF6326. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
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↔ TTE3010 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists TTE3010 as an interchange for HF6326. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
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↔ UC2411 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists UC2411 as an interchange for HF6326. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
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↔ UC2412 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists UC2412 as an interchange for HF6326. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
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↔ UC2413 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists UC2413 as an interchange for HF6326. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
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↔ UC2414 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists UC2414 as an interchange for HF6326. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
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↔ UC2418 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists UC2418 as an interchange for HF6326. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
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↔ UC5024 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists UC5024 as an interchange for HF6326. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
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↔ UC5042 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists UC5042 as an interchange for HF6326. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
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↔ UC5043 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists UC5043 as an interchange for HF6326. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ UC5053 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists UC5053 as an interchange for HF6326. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ W13006 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists W13006 as an interchange for HF6326. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ WGUC2418 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists WGUC2418 as an interchange for HF6326. 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 HF6326 model number is decoded
- HF6326Fleetguard HF-series hydraulic spin-on filter part number.
- 181.5 mmOverall height.
- 130 mmLargest outside diameter.
- 35 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
- A return-line element is not a pressure-line element: return cartridges (BN4HC low-collapse) tolerate roughly 20 bar differential, while BH4HC pressure executions are rated to 210 bar. Installing a low-collapse element in a pressure housing can rupture the media on cold-start spikes.
- This element has no integral bypass — opening pressure is set by the housing’s reusable bypass valve. Confirm the valve setting (commonly 3.4 bar) is present before fitting.
- “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 HF6326 filter element?
The published envelope is 130 mm OD × 181.5 mm length (5.118 × 7.146 in). Confirm against the housing drawing before ordering.
What micron rating does HF6326 use?
This element is rated 35 µm absolute — 35 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 HF6326 filter element?
65 partial match(es) requiring parameter review
How do I read the HF6326 part number?
See the designation decoder above: each segment of HF6326 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.