This is a A-AH105040 Ring Gear, Reverser Gearbox PN: AH105040Main Description As Following : A-AH105040 Ring Gear, Reverser Gearbox P.N: AH105040 Teeth: 73 Crossed From: AH97644 JOHN DEERE , CV103245 VAPORMATIC , WN-AH105040 , , WNAH105040 , Found in Section & Models : Headers/Platforms/Feeder House > Feeder House Parts, John Deere COMBINE: CTS, John Deere COMBINE: CTS II, John Deere COMBINE: 2054 (SN <063210 / European), John Deere COMBINE: 2056 (SN <063210 / European), John Deere COMBINE: 2058 (SN <063210 / European), John Deere COMBINE: 2064 (SN <063210 / European), John Deere COMBINE: 2066 (SN <063210 / European), John Deere COMBINE: 6620 (SN 610731>), John Deere COMBINE: 6622 (SN 507051>), John Deere COMBINE: 7720 (SN 612194>), John Deere COMBINE: 7722, John Deere COMBINE: 7722 HILLSIDE, John Deere COMBINE: 8820 (SN 404351>), John Deere COMBINE: 9400, John Deere COMBINE: 9410, John Deere COMBINE: 9450 (SN <700100), John Deere COMBINE: 9500, John Deere COMBINE: 9500SH, John Deere COMBINE: 9501, John Deere COMBINE: 9510 Associated Items : New Also A-JD-O-OMH111330, A-JD-O-OMH120048, A-JD-O-OMH111330, A-JD-O-OMH120048, A-JD-O-OMH111330, A-JD-O-OMH120048 And : Teeth: 73