This chain transmits motion from the drive sprocket to the upper drum in the inclined feeder of a combine harvester. It engages the slats that carry crop material up the feeder housing toward the threshing cylinder. A worn or stretched chain causes slat timing drift, leading to uneven feed and increased load on the drum bearings. The manufacturer machines the link geometry to match the original sprocket tooth profile, which maintains consistent engagement and reduces chordal action. The set includes the connecting clip for closing the chain loop. On installation, verify the chain tension per the machine manual and replace the clip if it shows deformation.