The Rear Cylinder Head assembly is constructed from several parts from which the Head Assy,cylinder Rr is the most expensive.
The Bolt(6x39) is the lowest priced item on this Rear Cylinder Head schematic.
The Bolt(6x39) is the most widely applied product in the VZR1800Z BOULEVARD M109R 2011 (L1) USA CALIF CANAD (E03 E33 E28) REAR CYLINDER HEAD ( eight times ).