A sample from the products for the Crankshaft include: Pin,crank, Circlip, Washer(37x55x1), Bearing(40x80x18).
The most reasonably priced component used on the Ls650 Boulevard S40 2006 (k6) Usa Californi Canada (e03 E33 E28) Crankshaft is the Circlip.
On this parts fiche the Washer(37x55x1) is the most specified component.