The Zetor 78420901 hydraulic pump, model UN16.02, is a genuine OEM component designed for Zetor agricultural tractors. This essential part provides the necessary hydraulic pressure for operating implements and steering systems. It is a direct replacement, ensuring optimal fit and performance for compatible Zetor models. The pump features a nominal displacement of 16 cm³ and is engineered for durability and efficient operation within the tractor's hydraulic circuit.