B · official + dimensions3 equivalents · 3 brands

AIR/OIL SEPARATOR cross-reference — SF®, WISMET®

HS-OS5051one HiStar element — compatible replacement for every part below

AIR/OIL SEPARATOR · 3 interchangeable part numbers across 3 brands

Dimensions: OD 170 mm · ID 135 mm · H 215 mm

Typical applications: ROTAIR

Interchangeable cross-brand part numbers

SF®

SAO 57240

WISMET®

WON 22131

HIFI Filter®

OS 5051

Quote source

HiStar Filter® HS-OS5051 Request a quote for this part → Prefilled with your part — reply within 24h · low minimums · European supply.

The SF SAO 57240 air/oil separator cross-references to HiStar HS-OS5051 — a compatible replacement element that also matches WISMET, and 3 interchangeable OEM part numbers in total. Same form, fit and function, OD 170 mm, ID 135 mm, H 215 mm; fits ROTAIR. Verified against the manufacturer's own cross-reference.