Hydrodrive® Stern-Drive systems for boats up to 12 m (40 ft). Installation on the engine tube, with or without the engine’s original standard servo steering. This System can be fitted with or without the original engine servo steering. All the steering kits come all in one: pump house, cylinder, oil, and hose set by made on twin hydraulic high-pressure tubes, already with fittings. You don’t have to do anything else than just install the pump and the cylinder, fix the hose set and fill the system with oil. All systems come with fast-fit connections and are compatible with the main application on the market.