Fleetguard · HF Hydraulic · return line
HF29078 filter element: specifications & equivalents
The HF29078 is a Fleetguard return-line hydraulic filter element, sized 97 × 240 mm OD × length. Verify against the current manufacturer data sheet before ordering.
Envelope OD × L 97 × 240 mm
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 |
| Outside diameter OD | 97 mm |
| Length | 240 mm |
| End caps | spin-on baseplate with attached gasket |
| Flow direction | outside-in |
| Integral bypass valve | none (housing/valve-dependent) |
| Manufacturer part no. | HF29078 |
| 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 | 97 mm (3.819 in) |
| Overall length | 240 mm (9.449 in) |
All 97×240 mm interchange elements →
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
|
↔ 1028828 page in verification queue | UFI | partial | Fleetguard's online catalog lists 1028828 as an interchange for HF29078. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 1033828 page in verification queue | UFI | partial | Fleetguard's online catalog lists 1033828 as an interchange for HF29078. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 1219868 page in verification queue | UFI | partial | Fleetguard's online catalog lists 1219868 as an interchange for HF29078. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 136641 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 136641 as an interchange for HF29078. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 1491 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 1491 as an interchange for HF29078. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 1560214 page in verification queue | UFI | partial | Fleetguard's online catalog lists 1560214 as an interchange for HF29078. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 220944 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 220944 as an interchange for HF29078. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 2262869 page in verification queue | UFI | partial | Fleetguard's online catalog lists 2262869 as an interchange for HF29078. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 340307921 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 340307921 as an interchange for HF29078. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 39796974 page in verification queue | UFI | partial | Fleetguard's online catalog lists 39796974 as an interchange for HF29078. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 39856844 page in verification queue | UFI | partial | Fleetguard's online catalog lists 39856844 as an interchange for HF29078. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 39911615 page in verification queue | UFI | partial | Fleetguard's online catalog lists 39911615 as an interchange for HF29078. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 3D96147G01 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 3D96147G01 as an interchange for HF29078. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 3I1906 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 3I1906 as an interchange for HF29078. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 3I1918 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 3I1918 as an interchange for HF29078. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
| ↔ 51491 | WIX Filters | partial | Fleetguard's online catalog lists 51491 as an interchange for HF29078. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 54749040 page in verification queue | UFI | partial | Fleetguard's online catalog lists 54749040 as an interchange for HF29078. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 85491 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 85491 as an interchange for HF29078. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 8602800 page in verification queue | UFI | partial | Fleetguard's online catalog lists 8602800 as an interchange for HF29078. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 92491 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 92491 as an interchange for HF29078. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 944020Q page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 944020Q as an interchange for HF29078. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 96461 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists 96461 as an interchange for HF29078. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
| ↔ BT8834-MPG | Baldwin Filters | partial | Fleetguard's online catalog lists BT8834MPG as an interchange for HF29078. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ BT9366MPG page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists BT9366MPG as an interchange for HF29078. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ HP409L96MB page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists HP409L96MB as an interchange for HF29078. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ HY846W page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists HY846W as an interchange for HF29078. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ L491 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists L491 as an interchange for HF29078. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
| ↔ P164056 | Donaldson | partial | Fleetguard's online catalog lists P164056 as an interchange for HF29078. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ SH66051 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists SH66051 as an interchange for HF29078. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ SH66115 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists SH66115 as an interchange for HF29078. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ SH66220 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists SH66220 as an interchange for HF29078. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ WH9808 page in verification queue | Aftermarket | partial | Fleetguard's online catalog lists WH9808 as an interchange for HF29078. 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 HF29078 model number is decoded
- HF29078Fleetguard HF-series hydraulic spin-on filter part number.
- 240 mmOverall height.
- 97 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
- 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 HF29078 filter element?
The published envelope is 97 mm OD × 240 mm length (3.819 × 9.449 in). Confirm against the housing drawing before ordering.
What replaces the HF29078 filter element?
32 partial match(es) requiring parameter review
How do I read the HF29078 part number?
See the designation decoder above: each segment of HF29078 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.
Same-envelope elements from other brands
View full interchange →These 4 catalog element(s) share the 97×240 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.