Some items from this specific schematic: Adj Tappet(3,15), Piston, Spring,valve, Clip,piston Pin.
With all the components that make up the GV100K2\A2\13ZG1IE1 PISTON/CRANKSHAFT/CAMSHAFT assembly. The Clip,piston Pin is the most frequently specified with two applications.
Check out any of the twenty-two Piston/crankshaft/camshaft components enlisted.