for Vespa 125 GTR 2??/ TS 2??/ 150 Sprint V 2??/ Super 2??/ Rally/ PX80-200/ PE/ Lusso/ T5/ Cosa
rubber
black seal

Grade A – perfect repair Product description
The
oil seals made of metal
, from later PX models, can be retro-fitted to the GTR/TS/Sprint/V/Rally models motors, replacing the original rubber item. The deciding factor is whether the seat of the oil seal has a groove cut into it or not. The PX 200 crankcases produced by do not feature this groove, meaning they can also benefit from the use of this seal type.
If this groove is present within the motor the rubber version must be used. Attention to this difference can be crucial for an oil-tight motor!

Engine case with groove cut: rubber clutch side oil seal
Engine case without groove cut: rubber or metal clutch side oil seal
Zini, STOFFIS GARAGE, Austria, 09/2020:
“We always use metal oil seals in PX Lusso engine casings. We haven’t had any problems since then.”

Andre & Robert, Team, 09/2020:
“We always install the blue rubber clutch side oil seal in casings without a groove. We also glue the metal oil seals in it. Take care of the 0.5mm clearance to the clutch side bearing.”

OEM numbers (for comparisons):
B015668 (PIAGGIO)