This V-belt transmits power from the engine pulley to the driven components in the combine’s drive system. It sits in the belt path that connects the engine output to the auxiliary drives, maintaining tension to prevent slip under varying load. A worn or stretched belt causes speed loss at the driven pulleys, reducing throughput and increasing the risk of belt failure. This original-manufacturer belt is molded to the same cross-section and length as the original assembly, so it seats correctly in the pulley grooves without requiring shimming or adjustment of the tensioner beyond the standard procedure. On installation, verify the belt path and adjust the tensioner to the specified deflection.