Filter Cross Reference

    Baldwin LL2521 cross reference

    Manufacturer numbers Baldwin lists LL2521 as the replacement for

    Baldwin lists LL2521 as the replacement for these manufacturer part numbers:

    ManufacturerTheir part number
    (manufacturer not verified)705086
    DONALDSONEAF5028
    DONALDSONP185028
    DONALDSONXLP182028
    FLEETGUARDAF979M
    GRAINGER4XCR1

    Source: Baldwin Manufacturers' Cross-Reference, Form 560-24 (2024). Baldwin's published direction is manufacturer part → Baldwin replacement. This list shows what Baldwin published in 2024. It does not verify that the numbers interchange today.

    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.