The Washer, Plain (646) is the lowest priced item on this Crank - Piston schematic.
Parts such as the Crank - Piston: Piston Ring Set (2nd O/s), Oil Seal(6h4), Pin, Dowel B (664), Gasket, Oil Seal Housing (nas) are included in the 5oeg 1988 Crank - Piston parts fiche.
With all the components that make up the 5OEG 1988 CRANK - PISTON assembly. The Pin, Dowel B (664) is the most frequently specified with ninety-three applications.