This V-belt transmits drive from the engine or intermediate shaft to the threshing drum within the combine harvester. It is a single-rib belt that runs in a dedicated pulley groove on the threshing unit. A worn or slipping belt reduces drum speed, leading to incomplete grain separation and increased losses. As an original-manufacturer belt from Gates, its cord construction and rubber compound match the tension and flex requirements of the original drive layout, so no adjustment to the tensioner range is needed. On installation, verify the belt is fully seated in the pulley grooves and tension to the manufacturer's specification.