Filter Cross Reference

    Baldwin BK6721 cross reference

    Manufacturer numbers Baldwin lists BK6721 as the replacement for

    Baldwin lists BK6721 as the replacement for these manufacturer part numbers:

    ManufacturerTheir part number
    ALLIANCEABPN10GFS19729
    BIG A FILTER96564
    CARQUEST89564
    DONALDSONP559222
    FLEETGUARDMK11362
    FLEETRITEMKR811362
    FRAMFK8064
    GRAINGER2TCK6
    HASTINGSKF45
    LUBER-FINERLK170M
    MACK215SB210
    MACK215SB210A
    NAPA GOLD4564
    WIX24564

    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.