Fleetguard · HF Hydraulic · inline line

HF6344 filter element: specifications & equivalents

Q: What are the dimensions of the HF6344 filter element?

The published envelope is 129.54 mm OD × 282.45 mm length (5.100 × 11.120 in). Confirm against the housing drawing before ordering.

The HF6344 is a Fleetguard inline-line hydraulic filter element, sized 129.54 × 282.45 mm OD × length. Verify against the current manufacturer data sheet before ordering.

Envelope OD × L 129.54 × 282.45 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	129.54 mm
Length	282.45 mm
End caps	open-ended cartridge element
Integral bypass valve	none (housing/valve-dependent)
Manufacturer part no.	HF6344
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	129.54 mm (5.100 in)
Overall length	282.45 mm (11.120 in)

Cross references & equivalents

Equivalent model	Brand	Match level	Note
↔ 100755 page in verification queue	Aftermarket	partial	Fleetguard's online catalog lists 100755 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ 103875 page in verification queue	Aftermarket	partial	Fleetguard's online catalog lists 103875 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ 105519 page in verification queue	Aftermarket	partial	Fleetguard's online catalog lists 105519 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ 1194 page in verification queue	Aftermarket	partial	Fleetguard's online catalog lists 1194 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ 1727046 page in verification queue	UFI	partial	Fleetguard's online catalog lists 1727046 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ 1R0722 page in verification queue	Aftermarket	partial	Fleetguard's online catalog lists 1R0722 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ 1R0774 page in verification queue	Aftermarket	partial	Fleetguard's online catalog lists 1R0774 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ 1U2096 page in verification queue	Aftermarket	partial	Fleetguard's online catalog lists 1U2096 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ 2014 page in verification queue	Aftermarket	partial	Fleetguard's online catalog lists 2014 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ 275 page in verification queue	Aftermarket	partial	Fleetguard's online catalog lists 275 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ 3000333 page in verification queue	UFI	partial	Fleetguard's online catalog lists 3000333 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ 3621297M1 page in verification queue	Aftermarket	partial	Fleetguard's online catalog lists 3621297M1 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ 3G3448 page in verification queue	Aftermarket	partial	Fleetguard's online catalog lists 3G3448 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ 3I0601 page in verification queue	Aftermarket	partial	Fleetguard's online catalog lists 3I0601 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ 3I1438 page in verification queue	Aftermarket	partial	Fleetguard's online catalog lists 3I1438 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ 4T3134 page in verification queue	Aftermarket	partial	Fleetguard's online catalog lists 4T3134 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ 51194	WIX Filters	partial	Fleetguard's online catalog lists 51194 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ 557194 page in verification queue	Aftermarket	partial	Fleetguard's online catalog lists 557194 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ 557197 page in verification queue	Aftermarket	partial	Fleetguard's online catalog lists 557197 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ 57194	WIX Filters	partial	Fleetguard's online catalog lists 57194 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ 57197 page in verification queue	Aftermarket	partial	Fleetguard's online catalog lists 57197 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ 5839HF6202 page in verification queue	Aftermarket	partial	Fleetguard's online catalog lists 5839HF6202 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ 7194 page in verification queue	Aftermarket	partial	Fleetguard's online catalog lists 7194 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ 7197 page in verification queue	Aftermarket	partial	Fleetguard's online catalog lists 7197 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ 84194 page in verification queue	Aftermarket	partial	Fleetguard's online catalog lists 84194 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ 84197 page in verification queue	Aftermarket	partial	Fleetguard's online catalog lists 84197 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ 85194 page in verification queue	Aftermarket	partial	Fleetguard's online catalog lists 85194 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ 92194 page in verification queue	Aftermarket	partial	Fleetguard's online catalog lists 92194 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ 9J0750 page in verification queue	Aftermarket	partial	Fleetguard's online catalog lists 9J0750 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ 9J5461 page in verification queue	Aftermarket	partial	Fleetguard's online catalog lists 9J5461 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ 9J750 page in verification queue	Aftermarket	partial	Fleetguard's online catalog lists 9J750 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ 9T7984 page in verification queue	Aftermarket	partial	Fleetguard's online catalog lists 9T7984 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ 9Y4523 page in verification queue	Aftermarket	partial	Fleetguard's online catalog lists 9Y4523 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ AC3313 page in verification queue	Aftermarket	partial	Fleetguard's online catalog lists AC3313 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ ALH16003 page in verification queue	Aftermarket	partial	Fleetguard's online catalog lists ALH16003 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ AMH6202 page in verification queue	Aftermarket	partial	Fleetguard's online catalog lists AMH6202 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ AS172H page in verification queue	Aftermarket	partial	Fleetguard's online catalog lists AS172H as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ C1723 page in verification queue	Aftermarket	partial	Fleetguard's online catalog lists C1723 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ C1723A page in verification queue	Aftermarket	partial	Fleetguard's online catalog lists C1723A as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ C7298 page in verification queue	Aftermarket	partial	Fleetguard's online catalog lists C7298 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ CE1172H page in verification queue	Aftermarket	partial	Fleetguard's online catalog lists CE1172H as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ DHE85 page in verification queue	Aftermarket	partial	Fleetguard's online catalog lists DHE85 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ E48H page in verification queue	Aftermarket	partial	Fleetguard's online catalog lists E48H as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ EY48H page in verification queue	Aftermarket	partial	Fleetguard's online catalog lists EY48H as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ FA201H page in verification queue	Aftermarket	partial	Fleetguard's online catalog lists FA201H as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ FH1054 page in verification queue	Aftermarket	partial	Fleetguard's online catalog lists FH1054 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ FH73 page in verification queue	Aftermarket	partial	Fleetguard's online catalog lists FH73 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ G051194 page in verification queue	Parker	partial	Fleetguard's online catalog lists G051194 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ G223 page in verification queue	Parker	partial	Fleetguard's online catalog lists G223 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ GHF7115 page in verification queue	Aftermarket	partial	Fleetguard's online catalog lists GHF7115 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ H5506 page in verification queue	Aftermarket	partial	Fleetguard's online catalog lists H5506 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ H56010 page in verification queue	Aftermarket	partial	Fleetguard's online catalog lists H56010 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ HC1723 page in verification queue	Pall	partial	Fleetguard's online catalog lists HC1723 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ HD1383	MANN-FILTER	partial	Fleetguard's online catalog lists HD1383 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ HEM6019 page in verification queue	Aftermarket	partial	Fleetguard's online catalog lists HEM6019 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ HF0634400 page in verification queue	Fleetguard	partial	Fleetguard's online catalog lists HF0634400 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ HF0634400J page in verification queue	Fleetguard	partial	Fleetguard's online catalog lists HF0634400 J as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ HF755 page in verification queue	Fleetguard	partial	Fleetguard's online catalog lists HF755 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ HX78 page in verification queue	Aftermarket	partial	Fleetguard's online catalog lists HX78 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ HY90163 page in verification queue	Aftermarket	partial	Fleetguard's online catalog lists HY90163 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ L206 page in verification queue	Aftermarket	partial	Fleetguard's online catalog lists L206 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ L876 page in verification queue	Aftermarket	partial	Fleetguard's online catalog lists L876 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ LH5461 page in verification queue	Aftermarket	partial	Fleetguard's online catalog lists LH5461 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ LH5854 page in verification queue	Aftermarket	partial	Fleetguard's online catalog lists LH5854 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ P162017 page in verification queue	Donaldson	partial	Fleetguard's online catalog lists P162017 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ P163875 page in verification queue	Donaldson	partial	Fleetguard's online catalog lists P163875 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ P164241 page in verification queue	Donaldson	partial	Fleetguard's online catalog lists P164241 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ P165241 page in verification queue	Donaldson	partial	Fleetguard's online catalog lists P165241 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ P5009 page in verification queue	Donaldson	partial	Fleetguard's online catalog lists P5009 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ P550575 page in verification queue	Donaldson	partial	Fleetguard's online catalog lists P550575 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ P550923 page in verification queue	Donaldson	partial	Fleetguard's online catalog lists P550923 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ P555461 page in verification queue	Donaldson	partial	Fleetguard's online catalog lists P555461 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ P555961 page in verification queue	Donaldson	partial	Fleetguard's online catalog lists P555961 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ P755 page in verification queue	Donaldson	partial	Fleetguard's online catalog lists P755 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ PEH831 page in verification queue	Aftermarket	partial	Fleetguard's online catalog lists PEH831 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ PF926 page in verification queue	Aftermarket	partial	Fleetguard's online catalog lists PF926 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ PM6010 page in verification queue	Aftermarket	partial	Fleetguard's online catalog lists PM6010 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ PT83	Baldwin Filters	partial	Fleetguard's online catalog lists PT83 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ PT83-MPG	Baldwin Filters	partial	Fleetguard's online catalog lists PT83MPG as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ PT8461 page in verification queue	Aftermarket	partial	Fleetguard's online catalog lists PT8461 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ R14E10G page in verification queue	Aftermarket	partial	Fleetguard's online catalog lists R14E10G as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ RP928 page in verification queue	Aftermarket	partial	Fleetguard's online catalog lists RP928 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ SFH5461 page in verification queue	Aftermarket	partial	Fleetguard's online catalog lists SFH5461 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ SH56252 page in verification queue	Aftermarket	partial	Fleetguard's online catalog lists SH56252 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ WD275 page in verification queue	Aftermarket	partial	Fleetguard's online catalog lists WD275 as an interchange for HF6344. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting.
↔ WGH6202 page in verification queue	Aftermarket	partial	Fleetguard's online catalog lists WGH6202 as an interchange for HF6344. 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 HF6344 model number is decoded

HF6344Fleetguard HF-series hydraulic cartridge element part number.
282.45 mmOverall height.
129.54 mmLargest outside 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 HF6344 filter element?

The published envelope is 129.54 mm OD × 282.45 mm length (5.100 × 11.120 in). Confirm against the housing drawing before ordering.

What replaces the HF6344 filter element?

86 partial match(es) requiring parameter review

How do I read the HF6344 part number?

See the designation decoder above: each segment of HF6344 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 →

HF28084 HF28086 HF28088 HF28201 HF28202 97×247 mm HF28652 HF28658 95×193 mm HF28660 HF28662 HF28667

Reviewed & verified by the ElementRef engineering desk against Cummins Filtration / Fleetguard on 2026-09-28. Read our editorial & correction policy.