This V-belt transmits power from the engine drive pulley to the threshing and cleaning systems of the parent combine. It is a multi-rib belt that runs on the grooved pulleys of the drive system, maintaining tension to prevent slip under varying load. A worn or glazed belt causes speed loss at the threshing drum, leading to incomplete separation and reduced throughput. As an original-manufacturer component, its pitch length and rib profile match the pulley groove geometry of the original assembly, so no adjustment of the tensioner range is needed. On installation, verify the belt runs in the correct rotation direction and that all idler pulleys move freely.