The Washer Seal, 6mm is the lowest priced item on this Cylinder Head schematic.
Some items from this specific schematic: Bolt,flange,6x75, Head Comp,cylinde, Bolt,flange,6x40, O-ring,39.5x2.6.
The Washer,plain 10mm is the most widely applied product in the TRX500FPEA 2010 (A) AUSTRALIA / EC PS CYLINDER HEAD ( six times ).