This is a A-04342501 PTO Disc: 11" rigid disc, organic PN: 04342501Main Description As Following : A-04342501 PTO Disc: 11" rigid disc, organic P.N: 4342501 A-04342501 PTO Disc: 11" rigid disc, organic P.N: 4342501 Stocked As: A-04378775 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