STAUFF · Replacement Elements · inline line
SF-6731-MG filter element: specifications & equivalents
The SF-6731-MG is a STAUFF 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 0.85.
Micron rating, media type, collapse pressure and seal material are not printed in the STAUFF interchange listing and are pending extraction from STAUFF product data sheets. Verify against the current STAUFF catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Filter type | inline line |
| Outside diameter OD | 128 mm |
| Integral bypass valve | none (housing/valve-dependent) |
| Source catalog | STAUFF: STAUFF Filter Interchange online database (filterinterchange.com) |
| Last verified | 2026-09-27 |
Sources: STAUFF — STAUFF Filter Interchange online database (filterinterchange.com) — accessed 2026-09-27.
STAUFF® and all model designations are trademarks of their respective owners, used here for identification only — ElementRef is an independent reference site, not an authorized STAUFF distributor.
Dimensions & series range
| Outside diameter | 128 mm (5.039 in) |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
|
↔ 10007A6 page in verification queue | Aftermarket | partial | STAUFF Filter Interchange lists 10007A6 (DIAMOND T) as replaced by SF-6731-MG. Envelope dimensions are published; media grade and performance data are not — confirm before substituting in cleanliness-critical circuits. |
|
↔ 101679 page in verification queue | Aftermarket | partial | STAUFF Filter Interchange lists 101679 (DIAMOND T) as replaced by SF-6731-MG. Envelope dimensions are published; media grade and performance data are not — confirm before substituting in cleanliness-critical circuits. |
|
↔ 118049 page in verification queue | Aftermarket | partial | STAUFF Filter Interchange lists 118049 (EIMCO) as replaced by SF-6731-MG. Envelope dimensions are published; media grade and performance data are not — confirm before substituting in cleanliness-critical circuits. |
|
↔ 2120168 page in verification queue | UFI | partial | STAUFF Filter Interchange lists 2120168 (JLG) as replaced by SF-6731-MG. Envelope dimensions are published; media grade and performance data are not — confirm before substituting in cleanliness-critical circuits. |
|
↔ 285011 page in verification queue | Aftermarket | partial | STAUFF Filter Interchange lists 285011 (CMI) as replaced by SF-6731-MG. Envelope dimensions are published; media grade and performance data are not — confirm before substituting in cleanliness-critical circuits. |
|
↔ 70177 page in verification queue | Aftermarket | partial | STAUFF Filter Interchange lists 70177 (CIMTEK) as replaced by SF-6731-MG. Envelope dimensions are published; media grade and performance data are not — confirm before substituting in cleanliness-critical circuits. |
|
↔ 70380027 page in verification queue | UFI | partial | STAUFF Filter Interchange lists 70380027 (COMEX / Ecoparts) as replaced by SF-6731-MG. Envelope dimensions are published; media grade and performance data are not — confirm before substituting in cleanliness-critical circuits. |
|
↔ A177605 page in verification queue | Aftermarket | partial | STAUFF Filter Interchange lists A177605 (CASE) as replaced by SF-6731-MG. Envelope dimensions are published; media grade and performance data are not — confirm before substituting in cleanliness-critical circuits. |
|
↔ A177614 page in verification queue | Aftermarket | partial | STAUFF Filter Interchange lists A177614 (CASE) as replaced by SF-6731-MG. Envelope dimensions are published; media grade and performance data are not — confirm before substituting in cleanliness-critical circuits. |
|
↔ A177615 page in verification queue | Aftermarket | partial | STAUFF Filter Interchange lists A177615 (CASE) as replaced by SF-6731-MG. Envelope dimensions are published; media grade and performance data are not — confirm before substituting in cleanliness-critical circuits. |
|
↔ B7011 page in verification queue | Aftermarket | partial | STAUFF Filter Interchange lists B 7011 (BALDWIN) as replaced by SF-6731-MG. Envelope dimensions are published; media grade and performance data are not — confirm before substituting in cleanliness-critical circuits. |
|
↔ HF6778 page in verification queue | Fleetguard | partial | STAUFF Filter Interchange lists HF 6778 (FLEETGUARD / CUMMINS) as replaced by SF-6731-MG. Envelope dimensions are published; media grade and performance data are not — confirm before substituting in cleanliness-critical circuits. |
|
↔ HF6780 page in verification queue | Fleetguard | partial | STAUFF Filter Interchange lists HF6780 (FLEETGUARD / CUMMINS) as replaced by SF-6731-MG. Envelope dimensions are published; media grade and performance data are not — confirm before substituting in cleanliness-critical circuits. |
|
↔ R928016675 page in verification queue | Aftermarket | partial | STAUFF Filter Interchange lists R 928016675 (EPE / Bosch-Rexroth Filtration) as replaced by SF-6731-MG. Envelope dimensions are published; media grade and performance data are not — confirm before substituting in cleanliness-critical circuits. |
|
↔ R928016677 page in verification queue | Aftermarket | partial | STAUFF Filter Interchange lists R 928016677 (EPE / Bosch-Rexroth Filtration) as replaced by SF-6731-MG. Envelope dimensions are published; media grade and performance data are not — confirm before substituting in cleanliness-critical circuits. |
|
↔ V0211B2R10 page in verification queue | Aftermarket | partial | STAUFF Filter Interchange lists V0211B2R10 (VICKERS) as replaced by SF-6731-MG. Envelope dimensions are published; media grade and performance data are not — confirm before substituting in cleanliness-critical circuits. |
|
↔ V0211B2V05 page in verification queue | Aftermarket | partial | STAUFF Filter Interchange lists V 0211 B2V05 (VICKERS) as replaced by SF-6731-MG. Envelope dimensions are published; media grade and performance data are not — confirm before substituting in cleanliness-critical circuits. |
|
↔ V0211B2V10 page in verification queue | Aftermarket | partial | STAUFF Filter Interchange lists V 0211B2V10 (VICKERS) as replaced by SF-6731-MG. Envelope dimensions are published; media grade and performance data are not — confirm before substituting in cleanliness-critical circuits. |
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 SF-6731-MG model number is decoded
- SF-6731-MGSTAUFF replacement element part number per the STAUFF Filter Interchange database.
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 replaces the SF-6731-MG filter element?
18 partial match(es) requiring parameter review
How do I read the SF-6731-MG part number?
See the designation decoder above: each segment of SF6731MG 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 Replacement Elements series
All 3832 → AD-030-B-125-B AD-030-B-40-B AD-030-B-60-B AD-030-B-80-B AD-030-E-20-B AD-033-B-40-B AD-033-B-60-B AD-033-B-80-B FE-BL-200 FE-BL-500
Reviewed & verified by the ElementRef engineering desk against STAUFF on 2026-09-27. Read our editorial & correction policy.