Of all the components used in this assembly the Pump Assy,oil is the most expensive.
Parts such as the Oil Pump - Fuel Pump: Screw, Gasket(13.8x18.8x4.8) (nas), Cap,oil Strainer, Stud 6x16 are included in the Ltf160 1999 (x) Oil Pump - Fuel Pump parts fiche.
The most reasonably priced component used on the Ltf160 1999 (x) Oil Pump - Fuel Pump is the Spring.