Of all the components used in this assembly the Crankshaft is the most expensive.
A sample from the products for the 006 Connecting Rods include: Nut, Thrust Washer 50x35x2.2, Thrust Washer 50x35x2.35, Washer, Lock.
The most reasonably priced component used on the M620 2006 Eu (monster 620 Dark) 9151-1432e 006 Connecting Rods is the Pin 2.5x10 Sw.