This V-belt transmits power from the engine pulley to the driven components within the combine's drive system. It is a multi-ribbed belt that maintains tension across the pulleys to keep the driven assemblies at the correct operating speed. A worn or slipping belt causes a loss of torque transfer, leading to under-speed operation of the driven equipment and potential overheating from belt slip. As an original-manufacturer component, the belt is molded to the same cross-section and pitch length as the original assembly, which ensures it seats correctly in the pulley grooves without requiring shimming or adjustment beyond the standard tensioner range. On installation, verify the belt is not twisted and that the tensioner is set to the specified deflection.