B · official + dimensions5 equivalents · 3 brands

VALVE FOR HAND PUMP cross-reference — Bosch®, HIFI OLD NUMBER®

HS-MO9321one HiStar element — compatible replacement for every part below

VALVE FOR HAND PUMP · 5 interchangeable part numbers across 3 brands

Dimensions: OD 13 mm · ID 7 mm · H 18 mm

Interchangeable cross-brand part numbers

Bosch®

2443123021, 2443123121, 2443203001

HIFI OLD NUMBER®

MO 321

HIFI Filter®

MO 9321

Quote source

HiStar Filter® HS-MO9321 Request a quote for this part → Prefilled with your part — reply within 24h · low minimums · European supply.

The Bosch 2443123021 valve for hand pump cross-references to HiStar HS-MO9321 — a compatible replacement element that also matches HIFI OLD NUMBER, and 5 interchangeable OEM part numbers in total. Same form, fit and function, OD 13 mm, ID 7 mm, H 18 mm. Verified against the manufacturer's own cross-reference.