The fifteen Mts620 2006 Usa (multistrada 620) 9151-2271c 034 Rear Suspension component parts are all listed in this schematic.
The component with the lowest price in the 034 REAR SUSPENSION schematic is the Nut M10x1.25x10.
Some items from this specific schematic: Spacer, Lever Set, Rear Cushion, Ball Joint, Bearing, Needle.