This is a A-AT151605 Damper, Torsional, 12" PN: AT151605Main Description As Following : A-AT151605 Damper, Torsional, 12" P.N: AT151605 Replaces: AT141526, AT68394, AT118706, AT83825Spline Count: 21Spline Diameter: 1.390" - Major, 1.250" - Minor Replaces: AT118706 JOHN DEERE , AT141526 JOHN DEERE , AT68394 JOHN DEERE , AT83825 JOHN DEERE , Crossed From: R151605 , Found in Section & Models : Clutch Parts > Powershift, John Deere BACKHOE: 610B, John Deere BACKHOE: 610C, John Deere BACKHOE: 710B Associated Items : New Also This is An Aftermarket Product And : Replaces: AT141526, AT68394, AT118706, AT83825 Spline Count: 21 Spline Diameter: 1.390" - Major, 1.250" - Minor