The Same Deutz-Fahr 04513721 is an original equipment manufacturer (OEM) tensioner pulley, specifically designed for various agricultural tractors within the SDF Group, including Same, Deutz-Fahr, Lamborghini, and Hürlimann models. This critical component ensures optimal tension for drive belts, contributing to efficient engine operation and extended belt life. It features an outer diameter of 70 mm and a width of 28 mm, providing a precise fit and reliable performance.