Parts such as the Water Pump: Bolt(6x13), Screw, O Ring, Pin are included in the Lt500r Quad Racer 1989 (k) Usa (e03) Quadracer Quad-racer Water Pump parts fiche.
On this parts fiche the Screw is the most specified component.
The Gasket 8.2x14x1 (nas) is the cheapest item from this partsfiche.
