B · official + dimensions3 equivalents · 3 brands

FUEL WATER SEPARATOR FILTER cross-reference — Caterpillar®, SF®

HS-SN55447one HiStar element — compatible replacement for every part below

FUEL WATER SEPARATOR FILTER · 3 interchangeable part numbers across 3 brands

Dimensions: OD 108.5 mm · ID 108 mm · H 276 mm · thread 1"-14UNF

Interchangeable cross-brand part numbers

Caterpillar®

4238521

SF®

SK 49018

HIFI Filter®

SN 55447

Quote source

HiStar Filter® HS-SN55447 Request a quote for this part → Prefilled with your part — reply within 24h · low minimums · European supply.

The Caterpillar 4238521 fuel water separator filter cross-references to HiStar HS-SN55447 — a compatible replacement element that also matches SF, and 3 interchangeable OEM part numbers in total. Same form, fit and function, OD 108.5 mm, ID 108 mm, H 276 mm. Verified against the manufacturer's own cross-reference.