This upper-sieve finger bar is the component that agitates the top sieve in the cleaning shoe of a combine harvester. It sits above the lower sieve and moves the crop mat across the sieve surface to aid stratification and separation. The finger bar’s motion keeps the sieve openings clear, preventing matting and maintaining airflow through the cleaning system. A worn or bent finger bar reduces sieve agitation, leading to incomplete separation and increased grain loss over the rear of the machine. The manufacturer produces this component to match the original geometry of the sieve assembly, ensuring the finger bar’s stroke and timing align with the rest of the cleaning-shoe drive.