Baldwin Filters · Form 561 Interchange · inline line
H9042 filter element: specifications & equivalents
The H9042 is a Baldwin Filters inline-line hydraulic filter element. Verify against the current manufacturer data sheet before ordering.
Line type inline
Partially verified. Fit and grade trace to an official interchange document;
dimensional values are compiled from 0 aftermarket listing(s)
and must be confirmed against the manufacturer housing drawing. Confidence score 0.80.
Form 561 is a cross-reference only — Baldwin prints no dimensions, micron rating, collapse pressure or seal data for this part number here. Verify every specification against the current Baldwin data sheet before ordering.
Specification table
| Parameter | Value |
|---|---|
| Filter type | inline line |
| Integral bypass valve | none (housing/valve-dependent) |
| Manufacturer part no. | H9042 |
| Source catalog | Baldwin Filters: Baldwin Filters Form 561 |
| Last verified | 2026-09-30 |
Sources: Baldwin Filters — Baldwin Filters Form 561 — accessed 2026-09-30.
Baldwin Filters® and all model designations are trademarks of their respective owners, used here for identification only — ElementRef is an independent reference site, not an authorized Baldwin Filters distributor.
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
|
↔ 10704D06BN page in verification queue | Aftermarket | partial | Baldwin's Form 561 Number-Finder cross-reference lists 10704D06BN (HYDAC) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 301102 page in verification queue | Aftermarket | partial | Baldwin's Form 561 Number-Finder cross-reference lists 301102 (INTERNORMEN) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
| ↔ 57121 | WIX Filters | partial | Baldwin's Form 561 Number-Finder cross-reference lists 57121 (WIX) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ 8902L06V04 page in verification queue | Aftermarket | partial | Baldwin's Form 561 Number-Finder cross-reference lists 8902L06V04 (SEPARATION) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ A6007003 page in verification queue | Aftermarket | partial | Baldwin's Form 561 Number-Finder cross-reference lists A6007003 (MPF) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ A7121 page in verification queue | Aftermarket | partial | Baldwin's Form 561 Number-Finder cross-reference lists A7121 (NA) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ B84121 page in verification queue | Aftermarket | partial | Baldwin's Form 561 Number-Finder cross-reference lists B84121 (CARQUEST) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ C1400EAM062N1 page in verification queue | Aftermarket | partial | Baldwin's Form 561 Number-Finder cross-reference lists C1400EAM062N1 (PFA) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ CM25001 page in verification queue | Aftermarket | partial | Baldwin's Form 561 Number-Finder cross-reference lists CM25001 (FBO) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ DD111G06A page in verification queue | Aftermarket | partial | Baldwin's Form 561 Number-Finder cross-reference lists DD111G06A (FILTREC) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ DD111G06AV page in verification queue | Aftermarket | partial | Baldwin's Form 561 Number-Finder cross-reference lists DD111G06AV (FILTREC) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ EY40201 page in verification queue | Aftermarket | partial | Baldwin's Form 561 Number-Finder cross-reference lists EY40201 (PA) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ FI126469 page in verification queue | Aftermarket | partial | Baldwin's Form 561 Number-Finder cross-reference lists FI126469 (KALMAR) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ FISP010E05B page in verification queue | Aftermarket | partial | Baldwin's Form 561 Number-Finder cross-reference lists FI SP010E05B (STA) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ FISP010E10B page in verification queue | Aftermarket | partial | Baldwin's Form 561 Number-Finder cross-reference lists FISP010E10B (STA) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ FK010HGB page in verification queue | Aftermarket | partial | Baldwin's Form 561 Number-Finder cross-reference lists FK010HGB (PT) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ G2U6391 page in verification queue | Parker | partial | Baldwin's Form 561 Number-Finder cross-reference lists G2U6391 (CAT) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ G4RGA7 page in verification queue | Parker | partial | Baldwin's Form 561 Number-Finder cross-reference lists G4RGA7 (GRAINGER) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ GA535FB10A page in verification queue | Aftermarket | partial | Baldwin's Form 561 Number-Finder cross-reference lists GA535FB10A (NORMAN EQUIPMENT) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ GA91121 page in verification queue | Aftermarket | partial | Baldwin's Form 561 Number-Finder cross-reference lists GA91121 (BG) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ GA9313342 page in verification queue | Aftermarket | partial | Baldwin's Form 561 Number-Finder cross-reference lists GA9313342 (PU) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ GA9326833 page in verification queue | Aftermarket | partial | Baldwin's Form 561 Number-Finder cross-reference lists GA9326833 (PUROLATOR) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ GCH152FC11 page in verification queue | Aftermarket | partial | Baldwin's Form 561 Number-Finder cross-reference lists GCH152FC11 (MPF) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ GHF30027 page in verification queue | Aftermarket | partial | Baldwin's Form 561 Number-Finder cross-reference lists GHF30027 (FLEETGUARD) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ GHF30028 page in verification queue | Aftermarket | partial | Baldwin's Form 561 Number-Finder cross-reference lists GHF30028 (FLEETGUARD) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ GHF30199 page in verification queue | Aftermarket | partial | Baldwin's Form 561 Number-Finder cross-reference lists GHF30199 (FLEETGUARD) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ GHF7041 page in verification queue | Aftermarket | partial | Baldwin's Form 561 Number-Finder cross-reference lists GHF7041 (FLEETGUARD) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ H90204005BN page in verification queue | Aftermarket | partial | Baldwin's Form 561 Number-Finder cross-reference lists H90204005BN (HYCON) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ HC9020FDN4H page in verification queue | Pall | partial | Baldwin's Form 561 Number-Finder cross-reference lists HC9020FDN4H (PA) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ HC9020FKN4Z page in verification queue | Pall | partial | Baldwin's Form 561 Number-Finder cross-reference lists HC9020FKN4Z (PA) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ HC9020FUN4H page in verification queue | Pall | partial | Baldwin's Form 561 Number-Finder cross-reference lists HC9020FUN4H (PA) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
| ↔ HD55 | MANN-FILTER | partial | MANN-FILTER's online catalog lists H9042 (BALDWIN) as a comparison number for HD55. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
| ↔ HF30028 | Fleetguard | partial | Fleetguard's online catalog lists H9042 as an interchange for HF30028. Envelope cross-reference; verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ HFR830027 page in verification queue | Fleetguard | partial | Baldwin's Form 561 Number-Finder cross-reference lists HFR830027 (FLEETRITE) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ HP0652A06NA page in verification queue | Aftermarket | partial | Baldwin's Form 561 Number-Finder cross-reference lists HP0652A06NA (MPF) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ HP20L412M page in verification queue | Aftermarket | partial | Baldwin's Form 561 Number-Finder cross-reference lists HP20L412M (HY-PRO) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ HP20L46MB page in verification queue | Aftermarket | partial | Baldwin's Form 561 Number-Finder cross-reference lists HP20L46MB (HY-PRO) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ HP20L46MV page in verification queue | Aftermarket | partial | Baldwin's Form 561 Number-Finder cross-reference lists HP20L46MV (HY-PRO) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ HY18290 page in verification queue | Aftermarket | partial | Baldwin's Form 561 Number-Finder cross-reference lists HY18290 (SFF) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ LARH0492LV10 page in verification queue | Aftermarket | partial | Baldwin's Form 561 Number-Finder cross-reference lists LARH0492LV10 (AIR REFINER) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ LHC9020FDN4Z page in verification queue | Aftermarket | partial | Baldwin's Form 561 Number-Finder cross-reference lists LHC9020FDN4Z (PA) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ LHC9020FKN4H page in verification queue | Aftermarket | partial | Baldwin's Form 561 Number-Finder cross-reference lists LHC9020FKN4H (PA) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ LHC9020FUN4Z page in verification queue | Aftermarket | partial | Baldwin's Form 561 Number-Finder cross-reference lists LHC9020FUN4Z (PA) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ MCH152FC11 page in verification queue | Aftermarket | partial | Baldwin's Form 561 Number-Finder cross-reference lists MCH152FC11 (MOD) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ MP3702 page in verification queue | MP Filtri | partial | Baldwin's Form 561 Number-Finder cross-reference lists MP3702 (MPF) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ MP9313218 page in verification queue | MP Filtri | partial | Baldwin's Form 561 Number-Finder cross-reference lists MP9313218 (PU) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ NE3041BU10 page in verification queue | Aftermarket | partial | Baldwin's Form 561 Number-Finder cross-reference lists NE3041BU10 (WESTERN FILTER) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ NFLH4234 page in verification queue | Aftermarket | partial | Baldwin's Form 561 Number-Finder cross-reference lists NFLH4234 (LU) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ NP165041 page in verification queue | Aftermarket | partial | Baldwin's Form 561 Number-Finder cross-reference lists NP165041 (DO) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ NP566196 page in verification queue | Aftermarket | partial | Baldwin's Form 561 Number-Finder cross-reference lists NP566196 (DONALDSON) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ O557121 page in verification queue | Aftermarket | partial | Baldwin's Form 561 Number-Finder cross-reference lists O557121 (WI) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ O925580 page in verification queue | Aftermarket | partial | Baldwin's Form 561 Number-Finder cross-reference lists O925580 (PARR FILTERS) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ ONPR2745 page in verification queue | Aftermarket | partial | Baldwin's Form 561 Number-Finder cross-reference lists ONPR2745 (PARKER) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ OWGPN9204 page in verification queue | Aftermarket | partial | Baldwin's Form 561 Number-Finder cross-reference lists OWGPN9204 (WOO) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ P0180442S61 page in verification queue | Donaldson | partial | Baldwin's Form 561 Number-Finder cross-reference lists P0180442S61 (FLUITEK) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ PHP0652A06AN page in verification queue | Aftermarket | partial | Baldwin's Form 561 Number-Finder cross-reference lists PHP0652A06AN (MPF) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ R920H0406A page in verification queue | Aftermarket | partial | Baldwin's Form 561 Number-Finder cross-reference lists R920H0406A (FAIREY-ARLON) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ R933239Q page in verification queue | Aftermarket | partial | Baldwin's Form 561 Number-Finder cross-reference lists R933239Q (PARR FILTERS) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ RG0406LN page in verification queue | Aftermarket | partial | Baldwin's Form 561 Number-Finder cross-reference lists RG0406LN (ZIN) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ RHFR830028 page in verification queue | Aftermarket | partial | Baldwin's Form 561 Number-Finder cross-reference lists RHFR830028 (FLEETRITE) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ RHFR87041 page in verification queue | Aftermarket | partial | Baldwin's Form 561 Number-Finder cross-reference lists RHFR87041 (FL) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ RL2902L06B04 page in verification queue | Aftermarket | partial | Baldwin's Form 561 Number-Finder cross-reference lists RL2902L06B04 (SEPARATION) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ RL2902L06V04 page in verification queue | Aftermarket | partial | Baldwin's Form 561 Number-Finder cross-reference lists RL2902L06V04 (SEPARATION) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ RSBF90204Z5B page in verification queue | Aftermarket | partial | Baldwin's Form 561 Number-Finder cross-reference lists RSBF90204Z5B (SCHROEDER) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ SB645711 page in verification queue | Aftermarket | partial | Baldwin's Form 561 Number-Finder cross-reference lists SB645711 (MOOG) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ SBF90204S3V page in verification queue | Aftermarket | partial | Baldwin's Form 561 Number-Finder cross-reference lists SBF90204S3V (SCHROEDER) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
| ↔ SBF-9020-4Z5V | Schroeder Industries | partial | Baldwin's Form 561 Number-Finder cross-reference lists SBF90204Z5V (SCHROEDER) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ SE3902GGEB04 page in verification queue | Aftermarket | partial | Baldwin's Form 561 Number-Finder cross-reference lists SE3902GGEB04 (SET) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ SE932611Q page in verification queue | Aftermarket | partial | Baldwin's Form 561 Number-Finder cross-reference lists SE932611Q (PARKER) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ SP010005E page in verification queue | Aftermarket | partial | Baldwin's Form 561 Number-Finder cross-reference lists SP010005E (STA) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ TP3I0649 page in verification queue | Aftermarket | partial | Baldwin's Form 561 Number-Finder cross-reference lists TP3I0649 (CATERPILLAR) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ UC7259 page in verification queue | Aftermarket | partial | Baldwin's Form 561 Number-Finder cross-reference lists UC7259 (FRAM) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ UE3041VU10 page in verification queue | Aftermarket | partial | Baldwin's Form 561 Number-Finder cross-reference lists UE3041VU10 (WESTERN FILTER) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ USP010E05V page in verification queue | Aftermarket | partial | Baldwin's Form 561 Number-Finder cross-reference lists U SP010E05V (STA) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ V3041B1C05 page in verification queue | Aftermarket | partial | Baldwin's Form 561 Number-Finder cross-reference lists V3041B1C05 (VICKERS) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ V3042B1V05 page in verification queue | Aftermarket | partial | Baldwin's Form 561 Number-Finder cross-reference lists V3042B1V05 (VICKERS) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ X590206VG10EP4 page in verification queue | Aftermarket | partial | Baldwin's Form 561 Number-Finder cross-reference lists X590206VG10EP4 (INTERNORMEN) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ XRR920Z0406A page in verification queue | Aftermarket | partial | Baldwin's Form 561 Number-Finder cross-reference lists XRR920Z0406A (FAIREY-ARLON) as replaced by Baldwin H9042. Form/fit listing without published performance data — verify micron grade, collapse rating and seal configuration before substituting. |
|
↔ YL1400EAM062F1 page in verification queue | Aftermarket | partial | Baldwin's Form 561 Number-Finder cross-reference lists YL1400EAM062F1 (PFA) as replaced by Baldwin H9042. Form/fit listing without published performance data — 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 H9042 model number is decoded
- H9042Baldwin filter part number per the Form 561 Number-Finder cross-reference.
Typical equipment & applications
- Hydraulic / transmission filtration — listed in the Baldwin Form 561 Number-Finder cross-reference.
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 replaces the H9042 filter element?
79 partial match(es) requiring parameter review
How do I read the H9042 part number?
See the designation decoder above: each segment of H9042 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 Form 561 Interchange series
All 1208 →Reviewed & verified by the ElementRef engineering desk against Baldwin Filters on 2026-09-30. Read our editorial & correction policy.