This is a A-OL50HIMP 50 Heavy Offset Link (Import) PN: OL50HIMPMain Description As Following : A-OL50HIMP 50 Heavy Offset Link (Import) P.N: OL50HIMP A-OL50HIMP 50 Heavy Offset Link (Import) P.N: OL50HIMP Replaces: SWC50HOL JOHN DEERE , Crossed From: WN-OL50HIMP , , 118268 , , 673-HH50 , , 673HH50 , Found in Section & Models : Chains/ Sprockets/ Pulleys/ Hubs > Roller Chains and Attachment Links, (Miscellaneous) (UNDEFINED): SEVERAL Associated Items : New Also This is An Aftermarket Product And : High Quality Afternaket Shipped from Both US and Canada