The Pillion*pdbg/pbk* assembly is constructed from several parts from which the Pillion Seat Kit Alc is the most expensive.
A sample from the products for the Pillion*pdbg/pbk* include: Stay Kit, Pillion Seat Kit Alc, Nut,u.,6mm.
The component with the lowest price in the PILLION*PDBG/PBK* schematic is the Nut,u.,6mm.