MANN-FILTER · HD / WD Hydraulic · inline line
WDK9002 filter element: specifications & equivalents
The WDK9002 is a MANN-FILTER inline-line hydraulic filter element, sized 94 × 216 mm OD × length. Verify against the current manufacturer data sheet before ordering.
Envelope OD × L 94 × 216 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 | 94 mm |
| Length | 216 mm |
| End caps | spin-on baseplate with attached gasket |
| Integral bypass valve | none (housing/valve-dependent) |
| Manufacturer part no. | WDK9002_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 | 94 mm (3.701 in) |
| Overall length | 216 mm (8.504 in) |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
|
↔ 1687434028 page in verification queue | Aftermarket | partial | MANN-FILTER's online catalog lists 1 687 434 028 (BOSCH) as a comparison number for WDK9002. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 4842FS page in verification queue | Aftermarket | partial | MANN-FILTER's online catalog lists 4842-FS (KS KOLBENSCHMIDT) as a comparison number for WDK9002. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 50014842 page in verification queue | UFI | partial | MANN-FILTER's online catalog lists 50 014 842 (KS KOLBENSCHMIDT) as a comparison number for WDK9002. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ FC79540 page in verification queue | Aftermarket | partial | MANN-FILTER's online catalog lists FC-79540 (SAKURA) as a comparison number for WDK9002. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ FF42240 page in verification queue | Aftermarket | partial | MANN-FILTER's online catalog lists FF42240 (FLEETGUARD/CUMMINS FILTRATION) as a comparison number for WDK9002. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ H18WK02 page in verification queue | Aftermarket | partial | MANN-FILTER's online catalog lists H18WK02 (HENGST) as a comparison number for WDK9002. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ SK3698 page in verification queue | Aftermarket | partial | MANN-FILTER's online catalog lists SK 3698 (SCHUPP / SF FILTER) as a comparison number for WDK9002. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ SN70245 page in verification queue | Aftermarket | partial | MANN-FILTER's online catalog lists SN 70245 (HIFI-FILTER (JURA FILTRATION)) as a comparison number for WDK9002. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ WF10457 page in verification queue | Aftermarket | partial | MANN-FILTER's online catalog lists WF10457 (WIX) as a comparison number for WDK9002. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ ZP3450FMB page in verification queue | Aftermarket | partial | MANN-FILTER's online catalog lists ZP 3450 FMB (FIL FILTER) as a comparison number for WDK9002. 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 WDK9002 model number is decoded
- WDK9002MANN-FILTER hydraulic spin-on filter part number.
- 216 mmElement height (H).
- 94 mmOuter diameter (A).
- 10Bypass valve opening pressure.
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 WDK9002 filter element?
The published envelope is 94 mm OD × 216 mm length (3.701 × 8.504 in). Confirm against the housing drawing before ordering.
What replaces the WDK9002 filter element?
10 partial match(es) requiring parameter review
How do I read the WDK9002 part number?
See the designation decoder above: each segment of WDK9002 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.