Part Number: F25-05050013 (PAF25-05050013)
Compatible with Yamaha 93210-12MG9
The part is used for engine models: Parsun F20/F25
This O-ring seals one of the oil passages where the oil pump meets the Parsun F25 cylinder head.
It fits the smaller of the two passage seals on the pump mounting face, alongside the separate B ring.