With a quantity of four pieces, the Washer,6.5x20x1.6 is the most used part in the TAILLIGHT ('80-'81 KE175-D2/D3) diagram.
The Washer-spring,6mm is the cheapest item from this partsfiche.
The Taillight ('80-'81 Ke175-d2/d3) assembly is constructed from several parts from which the Tail Lamp Unit is the most expensive.