thirty-nine components are listed in the schematic for this Xt350 Dual Purpose 1992 (n) Usa Crankchaft - Piston .
With six applications this Spring, Compression (5y1) is the most specified part.
A sample from the products for the Crankchaft - Piston include: Washer, Plate (30x), Nut, Hexagon (30x), Piston (1.00mm O/s), Crankshaft Assy.