This is a A-167698A Shaft, PTO (1000 RPM) PN: 167698AMain Description As Following : A-167698A Shaft, PTO (1000 RPM) P.N: 167698A Dim A (1): 21/21 SplinesDim B (2): 9.48" Long Crossed From: HD167698 , , 167698N BMD MFG Found in Section & Models : Tractor Parts Associated Items : New Also This is An Aftermarket Product And : Dim A (1): 21/21 Splines Dim B (2): 9.48" Long