The 'AANDR.POELIE AS KOPP.HUIS Citroen 11CV 11D' is a crucial car part for the Citroen 11CV and 11D models. It is a drive pulley on the axle of the clutch housing, which transfers power from the engine to the transmission. This component is essential for the smooth operation of the vehicle's transmission, as it aids in controlling clutch pressure and transmission efficiency. Replacing this pulley may be required when worn to ensure vehicle reliability and optimize overall car performance.