This is a A-253531A1 Shaft, Jackshaft Drive PN: 253531A1Main Description As Following : A-253531A1 Shaft, Jackshaft Drive P.N: 253531A1 Length: 70.00"Replaces: 239235A3Spline: 6 Replaces: 239235A3 CASE/INTERNATIONAL HAR. , Crossed From: AV100252 VAPORMATIC , WN-253531A1 , , WN253531A1 , Found in Section & Models : Headers/Platforms/Feeder House > Feeder House Parts, Case-IH COMBINE: 2144 (SN JJC0173150>), Case-IH COMBINE: 2166, Case-IH COMBINE: 2188 (SN JJC0193725>), Case-IH COMBINE: 2344 (SN: < JJC0174399), Case-IH COMBINE: 2366 (SN: < JJC0253999), Case-IH COMBINE: 2388 (SN: < JJC0268799) Associated Items : New Also This is An Aftermarket Product And : Length: 70.00" Replaces: 239235A3 Spline: 6