Fleetguard · HF Hydraulic · inline line
HF6259 filter element: specifications & equivalents
The HF6259 is a Fleetguard inline-line hydraulic filter element. Verify against the current manufacturer data sheet before ordering.
Inside diameter 66.55 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 |
| Inside diameter ID | 66.55 mm |
| Length | 64.26 mm |
| End caps | open-ended cartridge element |
| Integral bypass valve | none (housing/valve-dependent) |
| Manufacturer part no. | HF6259 |
| 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 |
|---|---|---|---|
|
↔ 495R3 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 495R3 as an interchange for HF6259. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 534100RV3 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 534100RV3 as an interchange for HF6259. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 7054RV3 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 7054RV3 as an interchange for HF6259. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 834100RV3 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 834100RV3 as an interchange for HF6259. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ CFSE51003 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists CFSE51003 as an interchange for HF6259. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ CFSE53 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists CFSE53 as an interchange for HF6259. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ FST1071RX page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists FST1071RX as an interchange for HF6259. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ H7054RV3 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists H7054RV3 as an interchange for HF6259. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ HF0625900 page in verification queue | Fleetguard | partial | Fleetguard's online catalog lists HF0625900 as an interchange for HF6259. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ P173910 page in verification queue | Donaldson | partial | Fleetguard's online catalog lists P173910 as an interchange for HF6259. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ SEH834100RV3 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists SEH834100RV3 as an interchange for HF6259. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ SN7510030 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists SN7510030 as an interchange for HF6259. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ SS0703 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists SS0703 as an interchange for HF6259. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ SS070G03 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists SS070G03 as an interchange for HF6259. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ SS1006B page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists SS1006B as an interchange for HF6259. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ STR0702M90G2B page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists STR0702M90G2B as an interchange for HF6259. 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 HF6259 model number is decoded
- HF6259Fleetguard HF-series hydraulic cartridge element part number.
- 64.26 mmOverall height.
- 66.55 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 replaces the HF6259 filter element?
16 partial match(es) requiring parameter review
How do I read the HF6259 part number?
See the designation decoder above: each segment of HF6259 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.