B · official + dimensions4 equivalents · 3 brands

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

HS-SN55445one HiStar element — compatible replacement for every part below

FUEL WATER SEPARATOR FILTER · 4 interchangeable part numbers across 3 brands

Dimensions: OD 108 mm · ID 108 mm · H 229 mm · thread 1"-14UNF

Typical applications: CATERPILLAR

Interchangeable cross-brand part numbers

Caterpillar®

1 R 0781, 3261641

Donaldson®

P 50-6239

HIFI Filter®

SN 55445

Quote source

HiStar Filter® HS-SN55445 Request a quote for this part → Prefilled with your part — reply within 24h · low minimums · European supply.

The Caterpillar 1 R 0781 fuel water separator filter cross-references to HiStar HS-SN55445 — a compatible replacement element that also matches Donaldson, and 4 interchangeable OEM part numbers in total. Same form, fit and function, OD 108 mm, ID 108 mm, H 229 mm; fits CATERPILLAR. Verified against the manufacturer's own cross-reference.