This is a A-92500C1 Shaft, PTO 1000 RPM PN: 92500C1Main Description As Following : A-92500C1 Shaft, PTO 1000 RPM P.N: 92500C1 Large 1,000 RPM, 1.750" - 20 splineSingle Speed PTOLong: 15.22"Tooth Front Splines: 17 Crossed From: AM92500C1 , , HA92500 , Found in Section & Models : PTO Parts > PTO and Related Parts, Case-IH TRACTOR: 7110, Case-IH TRACTOR: 7120, Case-IH TRACTOR: 7130 (TRANS. SN