The McCormick 3537321M1 is a genuine OEM gear, also cross-referenced as Massey Ferguson 3537321M1 and Landini 3537321M1. This 27-tooth gear features an outer diameter of 95mm and a height of 51mm. It is designed for various Massey Ferguson tractor series including 100, 200, 500, 600, 3000, 3100, 3600, 4200, 4300, 5300, 5400, 6100, 6200, 6400, 7400, 8100, and 8200 series, ensuring precise fit and reliable performance in agricultural machinery.