2.0 LITER DIESEL. Drain tube o-ring. lower. PartQualifier: lower. Return. Turbocharger Oil Line Gasket. Turbocharger Oil Line O-Ring. Drain o -. Inlet o -. Outlet o -. Return seal. Turbocharger Line Gasket. Included with: Drain Tube, Oil Outlet Tube, Oil Return Tube.