With four applications this Spark Plug(zfr5f-11) is the most specified part.
Some items from this specific schematic: Bolt,washer,8x28, Cord Comp,resista, Cord Comp,resista, Clamp D,high/t Co.
This Cord Comp,high/t is the most expensive of the items that make up this High Tension Cord-spark Plug assembly.