The AGCO Fendt ACW758005B is a genuine OEM DEF (Diesel Exhaust Fluid) tank, also known as a Urea tank, specifically designed for Fendt 700, 800, and 900 Vario S4 series agricultural tractors. This essential component stores the AdBlue/urea solution required for the Selective Catalytic Reduction (SCR) system, ensuring compliance with emission standards and maintaining optimal engine performance. It is a direct replacement part for maintaining the integrity of your Fendt machinery's emission control system.