This V-belt transmits torque from the engine output to the drive system of the parent harvesting machine. It sits between the crankshaft pulley and the main drive pulley, coupling rotational power to the wheels or track drive. A worn belt slips under load, causing reduced ground speed and potential overheating from friction. The manufacturer produces this belt to match the original cross-section and length, so the tensioner operates within its designed travel range. On installation, verify the belt seats fully in each pulley groove and adjust tension to the specification for the drive system.