This lower sieve finger is a replacement component for the threshing unit of a combine harvester. It is positioned on the lower sieve assembly, where it acts as a moving element that helps convey and separate the grain from the chaff across the sieve surface. A worn or broken finger disrupts the even flow of material across the sieve, leading to reduced separation efficiency and increased grain loss out the rear of the machine. The finger is manufactured to match the original part's geometry, ensuring it engages correctly with the sieve drive mechanism and maintains the proper oscillation pattern during operation.