That is the pump and the link takes you to the specs. I have a few at work and at roughly 300 GPM they will remove the water from your bilge without bothering fixing the hole in your hull, within reason of course. Solid objects to a little over 1" pass right through without damaging the unit.
The pump could be separated from the engine and mounted to an existing one if you can engineer the mount and somehow clutch it to turn only when called for. Seems a bit overkill though in my opinion for anything but salvage work.