This chain is part of the inclined feeder mechanism that transfers crop material from the header into the threshing rotor. It engages with the sprockets on the feeder drum and the return drum, pulling the crop mat up the feeder housing. A worn or stretched chain causes slip at the sprocket interface, leading to uneven feed rate and potential plugging of the threshing unit. As an original component, the link pitch and pin diameter match the original sprocket tooth profile, preventing accelerated sprocket wear. On installation, verify the chain tension is set to the specification for the feeder housing and that both sprockets are aligned in the same plane.