B · official + dimensions7 equivalents · 3 brands

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

HS-OS5251one HiStar element — compatible replacement for every part below

AIR/OIL SEPARATOR · 7 interchangeable part numbers across 3 brands

Dimensions: OD 740 mm · ID 475 mm · H 919 mm

Typical applications: COMPAIR-HOLMAN

Interchangeable cross-brand part numbers

SF®

DB 2129, SAO 57700

Mann®

4900050251, 4900051251, 4901352121, LE 135002 X

HIFI Filter®

OS 5251

Quote source

HiStar Filter® HS-OS5251 Request a quote for this part → Prefilled with your part — reply within 24h · low minimums · European supply.

The SF DB 2129 air/oil separator cross-references to HiStar HS-OS5251 — a compatible replacement element that also matches Mann, and 7 interchangeable OEM part numbers in total. Same form, fit and function, OD 740 mm, ID 475 mm, H 919 mm; fits COMPAIR-HOLMAN. Verified against the manufacturer's own cross-reference.