A sample from the products for the Taillight include: Nut, Spring, Rear Reflector Assy, 01330 P21/5w 12v Stop, Tail Light Unit Assy.
The most reasonably priced component used on the Xn150 Doodo 2001 5pr2 Italy 115pr-300e1 Taillight is the 01330 P21/5w 12v Stop.
With a quantity of two pieces, the Screw is the most used part in the TAILLIGHT diagram.