MANN-FILTER · HD / WD Hydraulic · inline line
HD55/6 filter element: specifications & equivalents
The HD55/6 is a MANN-FILTER inline-line hydraulic filter element, sized 45 × 113 mm OD × length (ID 24 mm). Verify against the current manufacturer data sheet before ordering.
Envelope OD × L 45 × 113 mm
Inside diameter 24 mm
Line type inline
Catalog verified. Parameters extracted from the manufacturer’s electronic
catalog / official interchange document and checked 2026-09-28. Confidence score 0.92.
Dimensions and comparison numbers are taken from the MANN-FILTER online catalog API. Beta rating, collapse pressure and seal material vary by execution — verify against the current MANN data sheet before ordering.
Specification table
| Parameter | Value |
|---|---|
| Filter type | inline line |
| Outside diameter OD | 45 mm |
| Inside diameter ID | 24 mm |
| Length | 113 mm |
| End caps | open-ended cartridge element |
| Integral bypass valve | none (housing/valve-dependent) |
| Manufacturer part no. | HD55/6_MANN-FILTER |
| Source catalog | MANN+HUMMEL / MANN-FILTER: MANN-FILTER online product catalog GraphQL API (mann-filter.com, store pcat_mf_en_store_en) |
| Last verified | 2026-09-28 |
Sources: MANN+HUMMEL / MANN-FILTER — MANN-FILTER online product catalog GraphQL API (mann-filter.com, store pcat_mf_en_store_en) — accessed 2026-09-27.
MANN-FILTER® and all model designations are trademarks of their respective owners, used here for identification only — ElementRef is an independent reference site, not an authorized MANN-FILTER distributor.
Dimensions & series range
| Outside diameter | 45 mm (1.772 in) |
| Inside diameter | 24 mm (0.945 in) |
| Overall length | 113 mm (4.449 in) |
All 45×113 mm interchange elements →
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
|
↔ 01262459 page in verification queue | UFI | partial | MANN-FILTER's online catalog lists 012 - 62/459 (HYDAC) as a comparison number for HD556. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 02060862 page in verification queue | UFI | partial | MANN-FILTER's online catalog lists 020 - 60/862 (HYDAC) as a comparison number for HD556. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 10704D10BH page in verification queue | Aftermarket | partial | MANN-FILTER's online catalog lists 10704 D 10 BH (HYDAC) as a comparison number for HD556. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 169021H10LL2115RP page in verification queue | Aftermarket | partial | MANN-FILTER's online catalog lists 16.9021H10LL-2115RP (EPPENSTEINER) as a comparison number for HD556. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 301106 page in verification queue | Aftermarket | partial | MANN-FILTER's online catalog lists 301106 (INTERNORMEN) as a comparison number for HD556. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
| ↔ 57855 | WIX Filters | partial | MANN-FILTER's online catalog lists 57855 (WIX) as a comparison number for HD556. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 9021415UM page in verification queue | Aftermarket | partial | MANN-FILTER's online catalog lists 9021415UM (TRIBOGUARD) as a comparison number for HD556. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 933565Q page in verification queue | Aftermarket | partial | MANN-FILTER's online catalog lists 933565Q (PARKER (PARKER HANNIFIN)) as a comparison number for HD556. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
| ↔ 933576Q | Parker | partial | MANN-FILTER's online catalog lists 933576Q (PARKER (PARKER HANNIFIN)) as a comparison number for HD556. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 943619Q page in verification queue | Aftermarket | partial | MANN-FILTER's online catalog lists 943619Q (PARKER (PARKER HANNIFIN)) as a comparison number for HD556. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ BE9021412A page in verification queue | Aftermarket | partial | MANN-FILTER's online catalog lists BE9021412A (BEHRINGER) as a comparison number for HD556. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ CCH152FD21 page in verification queue | Aftermarket | partial | MANN-FILTER's online catalog lists CCH 152 FD21 (SOFIMA) as a comparison number for HD556. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ CF9211A10HA page in verification queue | Aftermarket | partial | MANN-FILTER's online catalog lists CF 921 1 A10 HA (FAI FILTRI) as a comparison number for HD556. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ CM25102 page in verification queue | Aftermarket | partial | MANN-FILTER's online catalog lists CM 25102 (FBO) as a comparison number for HD556. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ D111G10 page in verification queue | Aftermarket | partial | MANN-FILTER's online catalog lists D111G10 (FILTREC) as a comparison number for HD556. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ D111G10B page in verification queue | Aftermarket | partial | MANN-FILTER's online catalog lists D111G10B (FILTREC) as a comparison number for HD556. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ EPB12NHC page in verification queue | Aftermarket | partial | MANN-FILTER's online catalog lists EPB 12 NHC (SOFIMA) as a comparison number for HD556. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ G0410H page in verification queue | Parker | partial | MANN-FILTER's online catalog lists G0410H (ZINGA) as a comparison number for HD556. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ GO1428 page in verification queue | Aftermarket | partial | MANN-FILTER's online catalog lists GO1428 (PARKER (PARKER HANNIFIN)) as a comparison number for HD556. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ HC9021FDS4H page in verification queue | Pall | partial | MANN-FILTER's online catalog lists HC 9021 FDS4H (PALL) as a comparison number for HD556. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ HC9021FKS4H page in verification queue | Pall | partial | MANN-FILTER's online catalog lists HC 9021 FKS4H (PALL) as a comparison number for HD556. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ HC9021FUT4Z page in verification queue | Pall | partial | MANN-FILTER's online catalog lists HC 9021 FUT4Z (PALL) as a comparison number for HD556. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ HEK8520106ASFG010HCB page in verification queue | Aftermarket | partial | MANN-FILTER's online catalog lists HEK85-20.106-AS-FG010-HC-B (IKRON) as a comparison number for HD556. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
| ↔ HF30204 | Fleetguard | partial | MANN-FILTER's online catalog lists HF30204 (FLEETGUARD/CUMMINS FILTRATION) as a comparison number for HD556. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
| ↔ HF7449 | Fleetguard | partial | MANN-FILTER's online catalog lists HF7449 (FLEETGUARD/CUMMINS FILTRATION) as a comparison number for HD556. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ HHC01990 page in verification queue | Aftermarket | partial | MANN-FILTER's online catalog lists HHC01990 (IKRON) as a comparison number for HD556. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ HP0652A10HA page in verification queue | Aftermarket | partial | MANN-FILTER's online catalog lists HP0652A10HA (MP FILTRI) as a comparison number for HD556. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ HP21L415MB page in verification queue | Aftermarket | partial | MANN-FILTER's online catalog lists HP21L415MB (HY-PRO) as a comparison number for HD556. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ HY18300 page in verification queue | Aftermarket | partial | MANN-FILTER's online catalog lists HY 18300 (SCHUPP / SF FILTER) as a comparison number for HD556. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ HY9406 page in verification queue | Aftermarket | partial | MANN-FILTER's online catalog lists HY 9406 (SCHUPP / SF FILTER) as a comparison number for HD556. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ M1A10HA page in verification queue | Aftermarket | partial | MANN-FILTER's online catalog lists M1A10HA (MP FILTRI) as a comparison number for HD556. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
| ↔ P167181 | Donaldson | partial | MANN-FILTER's online catalog lists P167181 (DONALDSON) as a comparison number for HD556. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ P9021D04H10 page in verification queue | Donaldson | partial | MANN-FILTER's online catalog lists P 9021 D04H10 (COMEX) as a comparison number for HD556. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ SBF90214S7B page in verification queue | Aftermarket | partial | MANN-FILTER's online catalog lists SBF90214S7B (SCHROEDER) as a comparison number for HD556. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
| ↔ SBF-9021-4Z10B | Schroeder Industries | partial | MANN-FILTER's online catalog lists SBF90214Z10B (SCHROEDER) as a comparison number for HD556. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
| ↔ SP-010-F-10-B | STAUFF | partial | MANN-FILTER's online catalog lists SP-010F10B (STAUFF) as a comparison number for HD556. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
| ↔ V3045B1H10 | Eaton / Internormen | partial | MANN-FILTER's online catalog lists V3045B1H10 (VICKERS) as a comparison number for HD556. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ WGH9204 page in verification queue | Aftermarket | partial | MANN-FILTER's online catalog lists WGH9204 (WOODGATE) as a comparison number for HD556. 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 HD55/6 model number is decoded
- HD55/6MANN-FILTER hydraulic cartridge element part number.
- 113 mmElement height (H).
- 45 mmOuter diameter (A).
- 24 mmInner diameter (B).
Typical equipment & applications
- Replacement element for OEM hydraulic filter housings
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 HD55/6 filter element?
The published envelope is 45 mm OD × 113 mm length with a 24 mm inside diameter (1.772 × 4.449 in × 0.945 in ID). Confirm against the housing drawing before ordering.
What replaces the HD55/6 filter element?
38 partial match(es) requiring parameter review
How do I read the HD55/6 part number?
See the designation decoder above: each segment of HD556 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 14 catalog element(s) share the 45×113 mm envelope. Envelope match alone does not guarantee interchangeability — compare micron/Beta, seals and collapse rating.
04.852 126.100G.HR.E.P 04.852 126.10VG.HR.E.P 04.852 126.25VG.16.E.P 04.852 126.3VG.HR.E.P 04.852126.60G.16.E.P HF29216 HF6369 HD55 HD55/1 HD55/2
Other models in the HD / WD Hydraulic series
All 880 →Reviewed & verified by the ElementRef engineering desk against MANN+HUMMEL / MANN-FILTER on 2026-09-28. Read our editorial & correction policy.