This OIL PUMP (MODEL K5) assembly utilises four Bolt(s) - the highest specified component.
The most reasonably priced component used on the Vl800z Volusia 2003 (k3) Usa (e03) Oil Pump (model K5) is the Bolt.
Some items from this specific schematic: Chain,oil Pump Drive, Valve Assy,oil Relief, Sprocket,oil Pump Driven, Shim(12x20x0.5).