The lowest price component in this Oil Cooler parts-list fiche is the Bolt,flg,soc,6x28.
The sub assemblies and components that make up this Oil Cooler include this Cooler Comp,oil, the most expensive part.
Some items from this specific schematic: Pkg,oil Cooler (nas), O-ring,15x2.5, Bolt,soc,flg,6x16, Plate,oil Pipe Se.