The Landini 3658808M91 is a genuine OEM Ring and Pinion Gear Set, featuring a Z13/36 tooth configuration (13 teeth on the pinion, 36 teeth on the ring gear). This critical drivetrain component is designed for precise fitment and reliable operation in a wide range of Landini tractor models, including the 6060, 6070, 7060, 7070, 8060, 8070, 6560, 7560, 8560, 6860, 7860, 8860, 9060, 9860, 6880, 7880, 8880, 9080, 9880, Ghibli, Legend, Mythos, Rex, and Vision series. Manufactured to Landini's exacting standards, this gear set ensures efficient power transfer and durability for demanding agricultural applications.