Fleetguard · HF Hydraulic · inline line
HF6320 filter element: specifications & equivalents
The HF6320 is a Fleetguard inline-line hydraulic filter element, sized 88.52 × 142.49 mm OD × length (ID 28.88 mm). Verify against the current manufacturer data sheet before ordering.
Envelope OD × L 88.52 × 142.49 mm
Inside diameter 28.88 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 |
| Outside diameter OD | 88.52 mm |
| Inside diameter ID | 28.88 mm |
| Length | 142.49 mm |
| End caps | open-ended cartridge element |
| Integral bypass valve | none (housing/valve-dependent) |
| Manufacturer part no. | HF6320 |
| 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 | 88.52 mm (3.485 in) |
| Inside diameter | 28.88 mm (1.137 in) |
| Overall length | 142.49 mm (5.610 in) |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
|
↔ 1004922 page in verification queue | UFI | partial | Fleetguard's online catalog lists 1004922 as an interchange for HF6320. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 10049229 page in verification queue | UFI | partial | Fleetguard's online catalog lists 10049229 as an interchange for HF6320. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 1620000230962 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 1620000230962 as an interchange for HF6320. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 244530 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 244530 as an interchange for HF6320. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 244639 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 244639 as an interchange for HF6320. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 29501509 page in verification queue | UFI | partial | Fleetguard's online catalog lists 29501509 as an interchange for HF6320. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 4699374 page in verification queue | UFI | partial | Fleetguard's online catalog lists 4699374 as an interchange for HF6320. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 480178 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 480178 as an interchange for HF6320. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 5537711600 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 5537711600 as an interchange for HF6320. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 71004922 page in verification queue | UFI | partial | Fleetguard's online catalog lists 71004922 as an interchange for HF6320. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 710049229 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 710049229 as an interchange for HF6320. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 71972 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 71972 as an interchange for HF6320. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 8424159 page in verification queue | UFI | partial | Fleetguard's online catalog lists 8424159 as an interchange for HF6320. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 900758 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 900758 as an interchange for HF6320. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 906041008 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 906041008 as an interchange for HF6320. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 9210970001 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 9210970001 as an interchange for HF6320. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ C2750503 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists C2750503 as an interchange for HF6320. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ FH102 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists FH102 as an interchange for HF6320. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ HF0632000 page in verification queue | Fleetguard | partial | Fleetguard's online catalog lists HF0632000 as an interchange for HF6320. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ HF0632000JX page in verification queue | Fleetguard | partial | Fleetguard's online catalog lists HF0632000JX as an interchange for HF6320. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ P550699 page in verification queue | Donaldson | partial | Fleetguard's online catalog lists P550699 as an interchange for HF6320. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
| ↔ PT549 | Baldwin Filters | partial | Baldwin's Form 561 Number-Finder cross-reference lists HF6320 (FL) as replaced by Baldwin PT549. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ S300744 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists S300744 as an interchange for HF6320. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ SH56370 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists SH56370 as an interchange for HF6320. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ T761001008 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists T761001008 as an interchange for HF6320. 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 HF6320 model number is decoded
- HF6320Fleetguard HF-series hydraulic cartridge element part number.
- 142.49 mmOverall height.
- 88.52 mmLargest outside diameter.
- 28.88 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 are the dimensions of the HF6320 filter element?
The published envelope is 88.52 mm OD × 142.49 mm length with a 28.88 mm inside diameter (3.485 × 5.610 in × 1.137 in ID). Confirm against the housing drawing before ordering.
What replaces the HF6320 filter element?
25 partial match(es) requiring parameter review
How do I read the HF6320 part number?
See the designation decoder above: each segment of HF6320 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.