The Kohler 3201007-S Engine Camshaft Assembly helps control the timing of the engine’s valve operation for proper combustion. Installed within compatible Kohler engines, the camshaft rotates with the engine and uses its lobes to actuate the intake and exhaust valves at the required points in the engine cycle. This coordinated movement supports efficient airflow, combustion, and exhaus... https://www.wholetoolbox.com/kohler-3201007-s-engine-camshaft-assembly/3201007-S.html