A sample from the products for the Piston/crankshaft include: Piston (0.50), Crank Shaft Comp., Piston (0.25), Ring Set,piston(0.
The Piston/crankshaft is made up of components including this Crank Shaft Comp. which is the most expensive.
In this schematic the "Clip,piston Pin" is used most often.