Carburetor sump rubber -SIL-TECH PERFORMANCE- Vespa Largeframe with oil pump. For PX LUSSO and LML with SI carburetor with oil pump. The flexible component manufactured in 3D printing by the tuning company SIL-TECH-Performance replaces the original air filter cover gasket. It is petrol-resistant and sits securely and accurately on the edge of the original carburettor bowl. Can also be combined with cover spacers or larger air filter covers (so-called airbox), but longer cover screws must then be used.