This is a A-H201579 Sheave, Half, Inner, Feeder House, Std. Capacity PN: H201579Main Description As Following : A-H201579 Sheave, Half; Inner, Feeder House, Std. Capacity P.N: H201579 Dim A (1): 12.524" O.D. Crossed From: CV104471 VAPORMATIC , WN-H201579 , , WNH201579 , Found in Section & Models : Headers/Platforms/Feeder House > Feeder House Parts, John Deere COMBINE: 9450 (SN 690518>), John Deere COMBINE: 9550 (SN 690801>), John Deere COMBINE: 9560, John Deere COMBINE: 9560SH, John Deere COMBINE: 9560STS (REGULAR DUTY), John Deere COMBINE: 9570STS (REGULAR DUTY), John Deere COMBINE: 9600 (USE WITH AH153339)), John Deere COMBINE: 9610 ((USE WITH AH153339)), John Deere COMBINE: 9650 (SN 690821> STD), John Deere COMBINE: 9650CTS (SN 690490> STD), John Deere COMBINE: 9650STS (SN 691932> STD), John Deere COMBINE: 9660 (STD), John Deere COMBINE: 9660CTS (STD), John Deere COMBINE: 9660STS (STD), John Deere COMBINE: 9670STS (STD), John Deere COMBINE: 9750STS (SN 691932> STD), John Deere COMBINE: 9760STS (STD), John Deere COMBINE: 9770STS (STD) Associated Items : New Also This is An Aftermarket Product And : Outside Diameter: 12.524"