This is a complete shredder assembly for the corn header of a harvesting machine. It is the rotating unit that processes crop residue after the ears are removed, cutting and distributing the stalk material across the width of the header. The assembly includes all components needed to mount and drive the shredding action, replacing the entire original unit rather than individual blades or bearings. A worn or damaged shredder allows long stalks to pass through, which can cause plugging in the following tillage pass or uneven residue distribution. This original manufacturer unit is built to the same rotor balance and blade geometry as the factory assembly, so it maintains the cutting pattern and power draw the header was designed for.