B · official + dimensions11 equivalents · 6 brands

AIR/OIL SEPARATOR cross-reference — Donaldson®, Fleetguard®, Baldwin®, SF® & more

HS-OS5258one HiStar element — compatible replacement for every part below

AIR/OIL SEPARATOR · 11 interchangeable part numbers across 6 brands

Dimensions: OD 300 mm · ID 220 mm · H 310 mm

Interchangeable cross-brand part numbers

Donaldson®

P 52-5557, P 52-5569, P 52-5663, P 52-5674

Fleetguard®

AS 2221, AS 2332

Baldwin®

OAS 4219, OAS 4289

SF®

SAO 57940

WISMET®

WON 22230

HIFI Filter®

OS 5258

Quote source

HiStar Filter® HS-OS5258 Request a quote for this part → Prefilled with your part — reply within 24h · low minimums · European supply.

The Donaldson P 52-5557 air/oil separator cross-references to HiStar HS-OS5258 — a compatible replacement element that also matches Fleetguard, Baldwin, SF, WISMET, and 11 interchangeable OEM part numbers in total. Same form, fit and function, OD 300 mm, ID 220 mm, H 310 mm. Verified against the manufacturer's own cross-reference.