The thirty-eight Dr800s 1992 (n) (e1 E02 E04 E17 E18 E21 E22 E24 E25 E34 E39 E53) Speedometer (model S/t) component parts are all listed in this schematic.
The most expensive part in this assembly is the Tachometer.
On this parts fiche the Damper is the most specified component.