Some items from this specific schematic: Spark-plug Pkj20c, Nut,hex Cap 6mm, Coil Comp, Plug Hole, Plug Hole Seal.
With a quantity of four pieces, the Coil Comp, Plug Hole is the most used part in the IGNITION COIL diagram.
The Ignition Coil is made up of components including this Coil Comp, Plug Hole which is the most expensive.