This is a A-RE29612 PTO Disc, 12", organic, solid PN: RE29612Main Description As Following : A-RE29612 PTO Disc, 12", organic, solid P.N: RE29612 Replaces: AR43028Spline Count: 32Spline Diameter: 2.063" Replaces: RE29612-RO JOHN DEERE , Crossed From: AR43028 JOHN DEERE Found in Section & Models : Clutch Parts > Syncro/Quad Range, John Deere TRACTOR: 4520, John Deere TRACTOR: 4620, John Deere TRACTOR: 620, John Deere TRACTOR: 7020 Associated Items : New Also A-JD-O-OMR46935, A-SMJD203, A-JD-O-OMR48272, A-JD-P-PC1229, A-JD-S-TM1030, A-SMJD203, A-FRM-JD, A-JD-O-OMR2053, A-JD-O-OMR2078, A-JD-P-PC528, A-JD-S-SM2008, A-JD-S-SM2022, A-JD-S-SM2024, A-JD-S-SM2029, A-JD-S-SM2045, A-JD-S-SM2050, A-SMJD16 And : Replaces: AR43028 Spline Count: 32 Spline Diameter: 2.063"