engine swing arm o-ring seal OEM 20.0x25.0x2.5mm for Runner, Hexagon, SKR, TPH PI-273774
20.0x25.0x2.5mm engine bushing swing arm packing ring suitable for former Gilera Runner as well as Piaggio Hexagon, SKR, Liberty, Skipper and TPH scooters. Original Piaggio spare part. OEM number: 273774