Of all the components used in this assembly the Crankcase (upper) is the most expensive.
The Bolt,flange, 6x32 is the most widely applied product in the XL500S 1981 (B) USA CRANKCASE ( eight times ).
A sample from the products for the Crankcase include: Pipe,oil Pass, Bolt,flange,6x55, Screen,oil Filter, Crankcase (upper).