The McCormick 3530121M91 is a genuine OEM pinion gear designed for reliable power transmission in agricultural machinery. This robust gear features 18 teeth, an overall diameter of 95 mm, and a height of 51 mm, weighing 1.12 kg. It is a direct replacement part, ensuring optimal performance and durability. This pinion gear is compatible with a wide range of McCormick, Massey Ferguson, and Landini tractor models, providing essential functionality for the transmission system.