On this parts fiche the O Ring 8x1 is the most specified component.
Parts such as the 035 Oil Cooler: Clamp, Oil Delivery Pipe, Spacer, Thermistor are included in the Mts1000ds 2005 Eu (multistrada 1000 Ds) 9151-1842c 035 Oil Cooler parts fiche.
Of all the components used in this assembly the Oil Cooler is the most expensive.