MANN-FILTER · HD / WD Hydraulic · inline line
WD1374 filter element: specifications & equivalents
The WD1374 is a MANN-FILTER inline-line hydraulic filter element, sized 136 × 177 mm OD × length. Verify against the current manufacturer data sheet before ordering.
Envelope OD × L 136 × 177 mm
Thread 1 1/2-16 UN
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 | 136 mm |
| Length | 177 mm |
| Thread / connection | 1 1/2-16 UN |
| End caps | spin-on baseplate with attached gasket |
| Integral bypass valve | none (housing/valve-dependent) |
| Manufacturer part no. | WD1374_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 | 136 mm (5.354 in) |
| Overall length | 177 mm (6.969 in) |
All 136×177 mm interchange elements →
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
|
↔ 1535354 page in verification queue | UFI | partial | MANN-FILTER's online catalog lists 1535354 (TRP DAF (TRUCK AND TRAILER)) as a comparison number for WD1374. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 3004004019 page in verification queue | Aftermarket | partial | MANN-FILTER's online catalog lists 3004004019 (EDMAC COMPRESSOR PARTS) as a comparison number for WD1374. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ DGMH18 page in verification queue | Aftermarket | partial | MANN-FILTER's online catalog lists DGM/H 18 (DIGOEMA FILTER) as a comparison number for WD1374. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ FH401V page in verification queue | Aftermarket | partial | MANN-FILTER's online catalog lists FH 401 V (MECAFILTER) as a comparison number for WD1374. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ H250WD page in verification queue | Aftermarket | partial | MANN-FILTER's online catalog lists H250WD (HENGST) as a comparison number for WD1374. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ HC18 page in verification queue | Pall | partial | MANN-FILTER's online catalog lists HC 18 (MAHLE (KNECHT/MAHLE)) as a comparison number for WD1374. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ HC27 page in verification queue | Pall | partial | MANN-FILTER's online catalog lists HC 27 (MAHLE (KNECHT/MAHLE)) as a comparison number for WD1374. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
| ↔ HF7946 | Fleetguard | partial | Fleetguard's online catalog lists WD1374 as an interchange for HF7946. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ HI13177 page in verification queue | Aftermarket | partial | MANN-FILTER's online catalog lists HI 13177 (UNICO) as a comparison number for WD1374. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ NO011480 page in verification queue | Aftermarket | partial | MANN-FILTER's online catalog lists NO 011480 (NOITECH) as a comparison number for WD1374. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ NO104780 page in verification queue | Aftermarket | partial | MANN-FILTER's online catalog lists NO104780 (NOITECH) as a comparison number for WD1374. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ PER176H page in verification queue | Aftermarket | partial | MANN-FILTER's online catalog lists PER 176 H (PUROLATOR) as a comparison number for WD1374. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ SH8114 page in verification queue | Aftermarket | partial | MANN-FILTER's online catalog lists SH8114 (SOTRAS) as a comparison number for WD1374. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ SO8473H page in verification queue | Aftermarket | partial | MANN-FILTER's online catalog lists SO8473H (FILMAR) as a comparison number for WD1374. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ SP594H page in verification queue | Aftermarket | partial | MANN-FILTER's online catalog lists SP 594 H (ASAS) as a comparison number for WD1374. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ SPH21011 page in verification queue | Aftermarket | partial | MANN-FILTER's online catalog lists SPH 21011 (SCHUPP / SF FILTER) as a comparison number for WD1374. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ SY8022 page in verification queue | Aftermarket | partial | MANN-FILTER's online catalog lists SY 8022 (SCT) as a comparison number for WD1374. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ ZP3283 page in verification queue | Aftermarket | partial | MANN-FILTER's online catalog lists ZP 3283 (FIL FILTER) as a comparison number for WD1374. 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 WD1374 model number is decoded
- WD1374MANN-FILTER hydraulic spin-on filter part number.
- 177 mmElement height (H).
- 136 mmOuter diameter (A).
- 1 1/2-16 UNSpin-on mounting thread.
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 WD1374 filter element?
The published envelope is 136 mm OD × 177 mm length (5.354 × 6.969 in). Confirm against the housing drawing before ordering.
What replaces the WD1374 filter element?
18 partial match(es) requiring parameter review
How do I read the WD1374 part number?
See the designation decoder above: each segment of WD1374 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 2 catalog element(s) share the 136×177 mm envelope. Envelope match alone does not guarantee interchangeability — compare micron/Beta, seals and collapse rating.
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.