a stowable powered jack for steering a boat trailer includes an electric motor turning a drive shaft running longitudinally through a support tube which is mounted to a trailer frame . the drive shaft powers a transmission which sits between a pair of wheels driven by a transverse axle . controls for the motor provide at least forward and reverse motion for wheels . the transmission is sealed within a housing that is swivels in relation to the fixed support tube . an extendable handle facilitates steering .