AQ271A; AQ271B; AQ271C; AQ271D; AQ271LB Transmissions Aquamatic Drive Unit Parts on group Aquamatic Drive Unit: Pos. Part No Qty Parts name Comments 1. 854015 [1] Drive 2. 854022 [1] Upper gear 2. 3803114 [1] Upper gear, exch 3. 7743470_051 interm housing 4. 854038 [1] Lower gear 4. 875192 [1] Gasket kit See group 10A Parts catalog : Lower Gear Unit Intermediate Housing Upper Gear Unit Lower Gear Unit Lower Gear Unit Intermediate Housing Duoprop Drive Unit Upper Gear Unit Intermediate Housing Lower Gear Unit Upper Gear Unit Intermediate Housing