This is a A-AT160477 Trans Disc: 11", organic, spring loaded, 7" dampener PN: AT160477Main Description As Following : A-AT160477 Trans Disc: 11", organic, spring loaded, 7" dampener P.N: AT160477 Replaces: AT33424, AT82040, AT117816Spline Count: 10Spline Diameter: 1.250" Replaces: AT160477-R JOHN DEERE , Crossed From: AT117816 JOHN DEERE , AT33424 JOHN DEERE , AT82040 JOHN DEERE Found in Section & Models : Clutch Parts > Single Clutch, John Deere CRAWLER: 455D, John Deere CRAWLER: 455E (S/N <720891), John Deere DOZER: 450C, John Deere DOZER: 450D, John Deere DOZER: 450E (S/N <720887), John Deere DOZER: 450G, John Deere INDUSTRIAL/CONSTRUCTION: 450B Associated Items : New Also This is An Aftermarket Product And : Replaces: AT33424, AT82040, AT117816 Spline Count: 10 Spline Diameter: 1.250"