Parts such as the Oil Pump: Pin(2.5x11.8), O Ring(d:1.9,id:13), Gasket(12.1x16.2x3.7) (nas), Cap,oil Strainer are included in the Lt230s 1986 (g) Usa (e03) Oil Pump parts fiche.
The Oil Pump is made up of components including this Cap,oil Strainer which is the most expensive.