AQ211A; DP-A; SP-A; 290A Transmissions Duoprop Drive Unit Parts on group Duoprop Drive Unit: Pos. Part No Qty Parts name Comments 1. 854021 [1] Drive E.u ratio 1,95:1 2. 854022 [1] Upper gear 2. 3803114 [1] Upper gear, exch 3. 7743450_040 upper gear unit 4. 854048 [1] Lower gear, lower gear unit Ratio 1,95:1 4. 875741 [1] Gasket kit See group 10A Parts catalog : Drive Unit Lower Gear Unit Intermediate Housing Upper Gear Unit Lower Gear Unit Intermediate Housing 290A Upper Gear Unit Intermediate Housing Lower Gear Unit Upper Gear Unit Intermediate Housing Lower Gear Unit