The 18c - Wiring Harness assembly is constructed from several parts from which the Main Wiring Harness is the most expensive.
The Clamp is the lowest priced item on this 18c - Wiring Harness schematic.
A sample from the products for the 18c - Wiring Harness include: Rubber Pad, Fuse 5a, Fuse 15a, Screw.