The Zetor 78420079 filter housing valve is a genuine OEM component designed for optimal performance in Zetor Forterra HSX, HD, Proxima Power, Plus, CL, Utilix, and Hortus series agricultural tractors. This essential valve ensures proper filtration system operation, maintaining the integrity of the hydraulic or fuel system. Weighing 0.12 kg, it is a direct replacement part for reliable maintenance.