WIX Filters · 57xxx · return line

57300 filter element: specifications & equivalents

The 57300 is a WIX Filters return-line hydraulic filter element, built with cellulose media, sized 93.7 × 198.8 mm OD × length, rated at 35 µm class (not separately rated (nominal cellulose)). Verify against the current manufacturer data sheet before ordering.

Envelope OD × L 93.7 × 198.8 mm

Filtration rating 35 µm nom.

Beta rating not separately rated (nominal cellulose)

Media Cellulose

Thread 1-1/8-16

Line type return

Catalog verified. Parameters extracted from the manufacturer’s electronic catalog / official interchange document and checked 2026-09-27. Confidence score 0.90.

Specification table

Parameter	Value
Filter type	return line
Media	Cellulose
Filtration rating	35 µm
Rating basis	nominal
Beta ratio	not separately rated (nominal cellulose)
Outside diameter OD	93.7 mm
Length	198.8 mm
Thread / connection	1-1/8-16
End caps	spin-on baseplate with attached gasket
Flow direction	outside-in
Integral bypass valve	opens at 0.827 bar
Seal material	Nitrile (NBR)
Manufacturer part no.	57300
Source catalog	WIX Filters (MANN+HUMMEL): WIX Filters online product catalog
Last verified	2026-09-27

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.

Dimensions & series range

Outside diameter	93.7 mm (3.689 in)
Overall length	198.8 mm (7.827 in)

All 94×199 mm interchange elements →

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.

How the 57300 model number is decoded

57300WIX hydraulic spin-on filter part number.
1-1/8-16Mounting thread: 1-1/8-16 (spin-on baseplate).
CelluloseFilter media: Cellulose.

Typical equipment & applications

Mobile and industrial hydraulic return circuits
Construction and agricultural equipment
Heavy-duty transmission and torque-converter circuits

Selection pitfalls — read before you substitute

A return-line element is not a pressure-line element: return cartridges (low-collapse) tolerate roughly 20 bar differential, while BH4HC pressure executions are rated to 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.
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 57300 filter element?

The published envelope is 93.7 mm OD × 198.8 mm length (3.689 × 7.827 in). Confirm against the housing drawing before ordering.

What micron rating does 57300 use?

This element is rated 35 µm (nominal class) — not separately rated (nominal cellulose). Always compare Beta ratings at the same test point: two brands may print different micron numbers for the same physical grade.

What replaces the 57300 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 57300 part number?

See the designation decoder above: each segment of 57300 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 94×199 mm envelope. Envelope match alone does not guarantee interchangeability — compare micron/Beta, seals and collapse rating.

51818 WIX Filters · 23 µm 51826 WIX Filters · 32 µm

Other models in the 57xxx series

All 221 →

57000 78×80 mm · 21 µm 57002 68×69 mm · 15 µm 57005 60×229 mm 57023 76×87 mm · 32 µm 57024 52×150 mm · 9 µm 57030 64×99 mm · 35 µm 57031 88×140 mm 57039 94×142 mm · 25 µm 57043 97×234 mm · 3 µm 57044 119×227 mm · 17 µm

Reviewed & verified by the ElementRef engineering desk against WIX Filters (MANN+HUMMEL) on 2026-09-27. Read our editorial & correction policy.