The Belarus 521802091 is a genuine OEM all-wheel drive gear, also known as a front axle gear, designed for a wide range of Belarus MTZ tractors. This critical component ensures proper power transmission to the front axle, maintaining the all-wheel drive functionality. It features 27 teeth, an outer diameter of 140 mm, an inner diameter of 50 mm, and a height of 30 mm. Weighing 1.1 kg, this durable gear is engineered to meet original equipment specifications for reliable performance in demanding agricultural applications.