This V-belt drives the air-conditioning compressor from the engine crankshaft pulley. It sits in the front accessory drive belt system, transmitting rotational force to the compressor clutch assembly. A worn or glazed belt slips under load, reducing compressor speed and causing weak cabin cooling or intermittent clutch engagement. The belt is an original AGCO component, manufactured to match the pulley groove profile and tension range of the original drive system so that no shimming or belt-profile adaptation is needed during installation.