Fuel pump, drain valve and fuel filter (BMW 3 Series E21)

A - engine of cars of the model "316" (until September 1960.), "318", "320"; B - engines of cars of models "315" and "316" (since 1981 model year)

1 — fuel pump pusher; 2 - heat-insulating gasket; 7 - sealing ring; 8 - fuel filter; 9 — fuel pump cover; 18 - drain valve; 26 — fuel filter.