With a quantity of two pieces, the Gasket 137131870000 (nas) is the most used part in the OIL PUMP diagram.
Some items from this specific schematic: Hose (l200), Screw, Pan Head(1ae), Metal, Worm Shaft Outer, Gear, Pump Drive.
Of all the components that make up this Oil Pump the Screw, Pan Head(1ae) has the lowest price.