WIX Filters · 57xxx · return line
57045 filter element: specifications & equivalents
The 57045 is a WIX Filters return-line hydraulic filter element, built with enhanced cellulose media, sized 74.7 × 122.6 mm OD × length, rated at 21 µm class (β2 = 6, β20 = 20). Verify against the current manufacturer data sheet before ordering.
Envelope OD × L 74.7 × 122.6 mm
Filtration rating 21 µm nom.
Beta rating β 2 = 6, β20 = 20
Media Enhanced Cellulose
Thread M22x1.5
Collapse / burst 24.131 bar
Line type return
Catalog verified. Parameters extracted from the manufacturer’s electronic
catalog / official interchange document and checked 2026-09-28. Confidence score 0.90.
Specification table
| Parameter | Value |
|---|---|
| Filter type | return line |
| Media | Enhanced Cellulose |
| Filtration rating | 21 µm |
| Rating basis | nominal |
| Beta ratio | β2 = 6, β20 = 20 |
| Outside diameter OD | 74.7 mm |
| Length | 122.6 mm |
| Thread / connection | M22x1.5 |
| End caps | spin-on baseplate with attached gasket |
| Flow direction | outside-in |
| Collapse / burst pressure | 24.131 bar |
| Integral bypass valve | opens at 0.827 bar |
| Seal material | Nitrile (NBR) |
| Manufacturer part no. | 57045 |
| Source catalog | WIX Filters (MANN+HUMMEL): WIX Filters online product catalog |
| Last verified | 2026-09-28 |
Sources: WIX Filters (MANN+HUMMEL) — WIX Filters online product catalog — accessed 2026-09-26.
WIX 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 WIX Filters distributor.
Dimensional drawing
Dimensions & series range
| Outside diameter | 74.7 mm (2.941 in) |
| Overall length | 122.6 mm (4.827 in) |
Cross references & equivalents
No catalog-verified cross references yet. This model is in the manual verification queue — request a verified equivalent.
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.
Full chart: WIX Filters cross reference chart →
How the 57045 model number is decoded
- 57045WIX lube spin-on filter part number.
- M22x1.5Mounting thread: M22x1.5 (spin-on baseplate).
- Enhanced CelluloseFilter media: Enhanced Cellulose.
Typical equipment & applications
- Engine lubrication circuits on heavy-duty equipment
- Construction and agricultural machinery
- Industrial and marine diesel engines
Selection pitfalls — read before you substitute
- Line type is not interchangeable: return-line cartridges are low-collapse executions that typically tolerate roughly 10–20 bar differential, while pressure-line elements are commonly rated 100–210 bar. Installing a low-collapse element in a pressure housing can rupture the media on cold-start spikes.
- This execution carries an integral bypass valve (opens at 0.827 bar). The same envelope also exists without it, relying on the housing valve. Mixing the two strategies changes cold-start protection — match what was installed originally.
- “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.
- This execution uses nitrile (nbr) seals — verify the compound against the fluid data sheet: standard nitrile (NBR) can fail early in phosphate-ester fluids and at sustained high temperature, where 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 57045 filter element?
The published envelope is 74.7 mm OD × 122.6 mm length (2.941 × 4.827 in). Confirm against the housing drawing before ordering.
What micron rating does 57045 use?
This element is rated 21 µm (nominal class) — β2 = 6, β20 = 20. Always compare Beta ratings at the same test point: two brands may print different micron numbers for the same physical grade.
What replaces the 57045 filter element?
Cross references are being verified for this model — use the inquiry form and the engineering desk will confirm equivalents.
How do I read the 57045 part number?
See the designation decoder above: each segment of 57045 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 filter 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 57xxx series
All 221 →Reviewed & verified by the ElementRef engineering desk against WIX Filters (MANN+HUMMEL) on 2026-09-28. Read our editorial & correction policy.