The 3679910M1 is a genuine OEM pinion gear designed for a wide range of Massey Ferguson, Landini, and McCormick agricultural tractors. This durable gear features 21 teeth, an outer diameter of 76mm, an inner diameter of 30mm, and a height of 28mm. It ensures reliable power transmission within the PTO or transmission system. This part is a direct replacement for other OEM numbers including 3679910M2, 3679910M3, 3679910M4, 3679910M5, 3679910M91, 3679910M92, 3679910M93, 3679910M94, and 3679910M95.