B · official + dimensions4 equivalents · 4 brands

3 MIC PREFILTER cross-reference — Mann®, SF®, WISMET®

HS-SI46521one HiStar element — compatible replacement for every part below

3 MIC PREFILTER · 4 interchangeable part numbers across 4 brands

Dimensions: OD 83 mm · ID 74 mm · H 788 mm · thread 5/16"-18UNF

Interchangeable cross-brand part numbers

Mann®

LD 9018/2 X

SF®

SDL 39312

WISMET®

WAI 20901

HIFI Filter®

SI 46521

Quote source

HiStar Filter® HS-SI46521 Request a quote for this part → Prefilled with your part — reply within 24h · low minimums · European supply.

The Mann LD 9018/2 X 3 mic prefilter cross-references to HiStar HS-SI46521 — a compatible replacement element that also matches SF, WISMET, and 4 interchangeable OEM part numbers in total. Same form, fit and function, OD 83 mm, ID 74 mm, H 788 mm. Verified against the manufacturer's own cross-reference.