Filter Cross Reference

    Fleetguard ST1977 cross reference

    Part numbers Fleetguard ST1977 replaces

    Fleetguard lists ST1977 as the replacement for these manufacturer part numbers:

    ManufacturerTheir part number
    STAUFF (STUF)90355C NR 250 E16 B
    MAHLE (MAHLE)PI 24025 RN SMX 16

    Source: Fleetguard Cross Reference by Part Number, doc LT19457D (2012). Fleetguard's published direction is manufacturer part → Fleetguard replacement.

    Currentness: these crosses come from Fleetguard's 2012 list and have not been revalidated as current. ST1977 was not found in our parse of Baldwin's 2024 list.

    Upgrade chains run one way: equipment spec'd with a newer filter number should not step back to the older one. Go by what the truck was spec'd with.

    Always verify against the current OEM catalog before ordering. Cross references are a starting point, not a guarantee of fit.

    Buy ST1977: FinditParts