This is a A-04378779 PTO Disc: 11" rigid disc, organic PN: 04378779Main Description As Following : A-04378779 PTO Disc: 11" rigid disc, organic P.N: 4378779 A-04378779 PTO Disc: 11" rigid disc, organic P.N: 4378779 Stocked As: A-02940356 Found in Section & Models : Tractor Parts Associated Items : New Also This is An Aftermarket Product And : High Quality Afternaket Shipped from Both US and Canada