The component with the lowest price in the CRANKSHAFT / PISTON schematic is the Clip,piston Pin.
Of all the components used in this assembly the Crankshaft Comp is the most expensive.
A sample from the products for the Crankshaft / Piston include: Clip,piston Pin, Piston,o/s 0.25, Ring Set,piston O, Ring Set,piston O.