This ribbed V-belt drives the air-conditioning compressor and associated drive-system components on the host tractor. It transmits torque from the engine crankshaft pulley to the compressor clutch, enabling refrigerant circulation in the HVAC loop. A worn or glazed belt slips under load, reducing compressor speed and lowering cabin cooling capacity. As an original AGCO part, the belt is molded to the same tooth profile and pitch length as the original assembly, which maintains proper tensioner-arm travel and prevents premature bearing wear on the driven pulleys. On installation, verify the belt rides fully in each pulley groove and adjust tension to the manufacturer’s specification.