The most expensive part in this assembly is the Tachometer.
This schematic depicts all components used in the Gsf600 1999 (x) (e02 E04 E17 E18 E22 E25 E34) / P37 Speedometer (model S) partslist.
With a quantity of five pieces, the Bulb(12v1.7w,wb372,t7) is the most used part in the SPEEDOMETER (MODEL S) diagram.