Fleetguard · HF Hydraulic · inline line
HF30879 filter element: specifications & equivalents
The HF30879 is a Fleetguard inline-line hydraulic filter element, sized 145.54 × 1005.84 mm OD × length, rated at 5 µm class (TWA 5 µm at β=2 per ISO 16889). Verify against the current manufacturer data sheet before ordering.
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 | 5 µm |
| Rating basis | nominal |
| Beta ratio | TWA 5 µm at β=2 per ISO 16889 |
| Outside diameter OD | 145.54 mm |
| Length | 1005.84 mm |
| End caps | open-ended cartridge element |
| Integral bypass valve | none (housing/valve-dependent) |
| Manufacturer part no. | HF30879 |
| 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 | 145.54 mm (5.730 in) |
| Overall length | 1005.84 mm (39.600 in) |
All 146×1006 mm interchange elements →
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
|
↔ 168304XH20SLS000P page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 168304XH20SLS000P as an interchange for HF30879. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ C134G25 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists C134G25 as an interchange for HF30879. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
| ↔ HC8304FKT39H | Pall | partial | Fleetguard's online catalog lists HC8304FKT39H as an interchange for HF30879. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
| ↔ HC8304FKT39Z | Pall | partial | Fleetguard's online catalog lists HC8304FKT39Z as an interchange for HF30879. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ SP304E20B page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists SP304E20B as an interchange for HF30879. 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 HF30879 model number is decoded
- HF30879Fleetguard HF-series hydraulic cartridge element part number.
- 1005.84 mmOverall height.
- 145.54 mmLargest outside diameter.
- TWA 5 µm at β=2 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).
- Fine 5 µm media loads faster and runs at a higher cold Δp than coarser grades — only downgrade cleanliness targets if the system ISO 4406 code allows it.
- 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 HF30879 filter element?
What micron rating does HF30879 use?
What replaces the HF30879 filter element?
How do I read the HF30879 part number?
Is a same-envelope aftermarket element always a drop-in replacement?
How often should a hydraulic return-line element be replaced?
Same-envelope elements from other brands
View full interchange →These 3 catalog element(s) share the 146×1006 mm envelope. Envelope match alone does not guarantee interchangeability — compare micron/Beta, seals and collapse rating.
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.