This lever actuates the straw-walker assembly in the threshing unit of a combine harvester. It transmits motion from the drive mechanism to the walker cranks, controlling the oscillation that separates grain from the straw mat. A worn lever introduces slop in the linkage, reducing walker stroke amplitude and leaving unthreshed grain in the discharge. The part is machined to match the original pivot geometry, preserving the timing relationship between the walker and the cleaning shoe. On reinstallation, verify that the retaining pin is fully seated and the cotter is replaced.