Parts such as the Crank - Piston: Piston(std)1sto/s K, Collar 183161360000, Bearing, Cylindrical(2al), Metal,filler are included in the Yas1c 1968 California Crank - Piston parts fiche.
The Crank - Piston assembly is constructed from several parts from which the Crank 1 (r.h) is the most expensive.