The ZF 1250303138 is a genuine OEM 6th speed gear designed for the secondary shaft of ZF gearboxes. This critical component ensures precise power transmission and reliable performance in agricultural machinery. Featuring 36 teeth, an outer diameter of 105 mm, an inner diameter of 50 mm, and a thickness of 25 mm, it is engineered for durability and direct fitment. This gear is compatible with numerous tractor models from brands such as Massey Ferguson, Fendt, Valtra, Challenger, and John Deere, including various models in the MF 3000, 6000, 8000 series, Fendt 300, 500, 700, 800, 900 series, Valtra N and T series, Challenger MT series, and John Deere 6000 and 7000 series.