This variator belt transmits power between the engine crankshaft and the variable-speed pulley that drives the implement pump. It sits in the front engine bay, connecting the drive pulley to the variator unit that adjusts output speed for the hydraulic system. A worn or glazed belt slips under load, causing erratic pump speed and reduced hydraulic flow to the implement. This original-manufacturer belt matches the tooth profile and pitch of the original pulley set, so no adjustment of the variator stop is needed on installation. When replacing, inspect the pulley faces for wear and clean any debris from the belt path before tensioning to the specified deflection.