Oil seal 31x57/61x6mm -PINASCO 2.0 engine case- used for crankshaft drive side Vespa PX (from 1984), T5 125cc, Cosa

Oil seal for the Pinasco 2.0 and P251 case types. These use a separate type of oil seal for the crankshaft on the clutch side. The engine case has a stop for the oil seal which is also mounted from the clutch side. This technique prevents the large oil seal from falling into the crankcase.