Piaggio Vespa Cylinder Head PX200, COSA200, RALLY200Piaggio Vespa Cylinder Head PX200, COSA200, RALLY200 Original Vespa parts are made to a great standard! We have sold 100s of these parts in the past and used them on our own scooters as well! So we can guarantee that these are tried and tested parts! Piaggio recommend when assembling these products, applying a coat of grease round the base, where the cylinder makes a connection with the barrel! aluminium 66,5 mm long thread Comparison No. 1984884