Parts such as the Seat: Buddy Seat, Washer,spring, Cover, Seat, Washer, Spring are included in the Sr500 1978 2j4 Europe 2j428-198e5 Seat parts fiche.
This schematic depicts all components used in the Sr500 1978 2j4 Europe 2j428-198e5 Seat partslist.
The Bolt (835) is the most widely applied product in the SR500 1978 2J4 EUROPE 2J428-198E5 SEAT ( seven times ).