This drive chain transmits power from the gearbox output to the cross auger that moves grain toward the elevator in the combine's grain tank. It is a left-side assembly, positioned at the tank's discharge end. The chain runs on sprockets that match its 10A-1 pitch and roller diameter; a worn or stretched chain causes the auger to slip, leading to uneven grain flow and potential plugging at the elevator intake. The set includes a connecting clip for joining the ends. On installation, verify the chain tension per the machine's specification and confirm the clip is seated with its open end facing the direction of travel to avoid snagging.