The component with the lowest price in the FRAME / IGNITION COIL schematic is the Spg/washer,6mm.
Of all the components used in this assembly the Frame *r119* is the most expensive.
A sample from the products for the Frame / Ignition Coil include: Band A3,wire, Nut,hex 8mm, Spg-washer 8mm, Frame *r119*.