This is a A-1997455C1 Shaft, Transmission Output PN: 1997455C1Main Description As Following : A-1997455C1 Shaft, Transmission Output P.N: 1997455C1 Length: 16.82"Spline Count: 12/ 33/ 14 Crossed From: AM1997455C1 , , AV101380 VAPORMATIC , 300-C1997455 , , 300C1997455 , Found in Section & Models : Power Train/Propulsion > Combine Clutch Parts, Case-IH COMBINE: 2144 (SN