MANN-FILTER · HD / WD Hydraulic · inline line
HD4012 filter element: specifications & equivalents
The HD4012 is a MANN-FILTER inline-line hydraulic filter element, sized 45 × 155 mm OD × length (ID 19 mm). Verify against the current manufacturer data sheet before ordering.
Envelope OD × L 45 × 155 mm
Inside diameter 19 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 | 19 mm |
| Length | 155 mm |
| End caps | open-ended cartridge element |
| Integral bypass valve | none (housing/valve-dependent) |
| Manufacturer part no. | HD4012_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 | 19 mm (0.748 in) |
| Overall length | 155 mm (6.102 in) |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
|
↔ 140105 page in verification queue | Aftermarket | partial | MANN-FILTER's online catalog lists 140105 (LÖSING FILTERTECHNIK) as a comparison number for HD4012. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ CR401 page in verification queue | Aftermarket | partial | MANN-FILTER's online catalog lists CR 40/1 (FBO) as a comparison number for HD4012. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ HEK0208145ASRP010VMB17B page in verification queue | Aftermarket | partial | MANN-FILTER's online catalog lists HEK 02-08.145-AS-RP010-VM-B17-B (IKRON) as a comparison number for HD4012. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ HY12246 page in verification queue | Aftermarket | partial | MANN-FILTER's online catalog lists HY 12246 (SCHUPP / SF FILTER) as a comparison number for HD4012. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ HY18762 page in verification queue | Aftermarket | partial | MANN-FILTER's online catalog lists HY 18762 (SCHUPP / SF FILTER) as a comparison number for HD4012. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ MF0202P10HBP01 page in verification queue | Aftermarket | partial | MANN-FILTER's online catalog lists MF0202P10HBP01 (MP FILTRI) as a comparison number for HD4012. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ MF0202P10N page in verification queue | Aftermarket | partial | MANN-FILTER's online catalog lists MF 020 2 P10N (FAI FILTRI) as a comparison number for HD4012. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ MF0202P10NBP01 page in verification queue | Aftermarket | partial | MANN-FILTER's online catalog lists MF0202P10NBP01 (MP FILTRI) as a comparison number for HD4012. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
| ↔ P171839 | Donaldson | partial | MANN-FILTER's online catalog lists P171839 (DONALDSON) as a comparison number for HD4012. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ PT9143 page in verification queue | Aftermarket | partial | MANN-FILTER's online catalog lists PT9143 (BALDWIN) as a comparison number for HD4012. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ R102C10B page in verification queue | Aftermarket | partial | MANN-FILTER's online catalog lists R102C10B (FILTREC) as a comparison number for HD4012. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ SH63393 page in verification queue | Aftermarket | partial | MANN-FILTER's online catalog lists SH 63393 (HIFI-FILTER (JURA FILTRATION)) as a comparison number for HD4012. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ WGH1882 page in verification queue | Aftermarket | partial | MANN-FILTER's online catalog lists WGH1882 (WOODGATE) as a comparison number for HD4012. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ WHE30618 page in verification queue | Aftermarket | partial | MANN-FILTER's online catalog lists WHE30618 (WISMET) as a comparison number for HD4012. 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 HD4012 model number is decoded
- HD4012MANN-FILTER hydraulic cartridge element part number.
- 155 mmElement height (H).
- 45 mmOuter diameter (A).
- 19 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 HD4012 filter element?
The published envelope is 45 mm OD × 155 mm length with a 19 mm inside diameter (1.772 × 6.102 in × 0.748 in ID). Confirm against the housing drawing before ordering.
What replaces the HD4012 filter element?
14 partial match(es) requiring parameter review
How do I read the HD4012 part number?
See the designation decoder above: each segment of HD4012 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 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.