Some items from this specific schematic: Brg.f,conn.rod*pink, Brg D,cnrod*green, Ring,piston (std), Brg B,cnrod*black.
The Crankshaft - Piston assembly is constructed from several parts from which the Crankshaft Comp. is the most expensive.
This CRANKSHAFT - PISTON assembly utilises four Bolt.,conrod(s) - the highest specified component.