This is a A-1539028C1 PTO Disc: 12", rigid, organic PN: 1539028C1Main Description As Following : A-1539028C1 PTO Disc: 12", rigid, organic P.N: 1539028C1 Replaces: K952378Spline Count: 10Spline Diameter: 1.250" Replaces: A-K952387 DAVID BROWN , A-VPG2079 MISCELLANEOUS , 331012246 LUK CLUTCH , 4281068 LUK CLUTCH , 4281414 LUK CLUTCH , Crossed From: AK952378N , , K952378 CASE-IH Found in Section & Models : Clutch Parts > Double Clutch, Case-IH TRACTOR: 1690, Case-IH TRACTOR: 1694, Clutch Parts > Independent Clutch, Case-IH TRACTOR: 1594 Associated Items : New Also A-CA-O-1594, A-CA-P-1594, A-CA-S-1490, A-IH-S-AIRHEAT, A-SMC36, A-CA-O-1690, A-CA-P-1690, A-CA-S-1490, A-SMC36, A-IH-S-AIRHEAT And : Replaces: K952378 Spline Count: 10 Spline Diameter: 1.250"