OEM Outer Driving Pulley Half for Vespa, Aprilia, Piaggio and other Scooters with Piaggio 125 or 150 engines. Genuine Piaggio Part in original Piaggio packaging.
The Manufacturer recommends replacing the nut that holds this to the crankshaft every time it is removed. The part numbers for the nut are 436738 or M199219E
APRILIA Atlantic 125
APRILIA Mojito 150