The Washer, Plate (898 Ski) is the lowest priced item on this Exhaust schematic.
The Exhaust is made up of components including this Exhaust Pipe Assy 1 which is the most expensive.
Parts such as the Exhaust: Screw, Bind (844), Washer, Plate(3mt), Exhaust Pipe Assy 1, Protector, Muffler 1 are included in the Dt50mx 1989 3tg1 Sweden 293tg-322e1 Exhaust parts fiche.