The Br250tm 1988 Oil Pump consists of twenty-two pieces with the Oil Pump Assy being the most expensive.
The twenty-two Br250tm 1988 Oil Pump component parts are all listed in this schematic.
Some items from this specific schematic: Nut, Hexagon (663), Oil Pump Assy, Nozzle, Gasket, Pump Case (mca).