Parts such as the Lower_casing_drive_1: Circlip, O-ring (183), Pinion, Impeller are included in the 2mhx 1999 Lower_casing_drive_1 parts fiche.
With a quantity of two pieces, the Gasket (nas) is the most used part in the LOWER_CASING_DRIVE_1 diagram.
The sub assemblies and components that make up this Lower_casing_drive_1 include this Lower Unit Assy, the most expensive part.