HiStar SO 37991 — Cross-Brand Interchange
One HiStar element — SO 37991 — is a compatible, drop-in replacement for the 2 OEM filter part numbers below, spanning 2 brands. Same form, fit and function, ISO 16889 multi-pass validated, OD 400 mm · ID 40 mm · H 0.5 mm. No system modification required.
| Brand | OEM Part Number | HiStar Replacement |
|---|---|---|
| Mann® | 6971247991 | HiStar SO 37991 → |
| Onergys® | 30061506 | HiStar SO 37991 → |
OEM names and part numbers are the property of their respective owners and are shown for compatibility and identification purposes only.