SeaStar HK7500-4 PRO Hydraulic Steering Kit The Dometic SeaStar PRO HK75004 Steering Kit is designed for high torque SINGLE non-power-assisted up to 350HP outboard applications such as bass boats, flats, combo race/ski and other high performance oriented boats capable of speeds in excess of 65mph. SeaStar PRO has steered the BASS Masters Classic since 1994 and it’s the choice of high performance outboard boat builders. It is suitable for use with high-performance propellers and jack plates. The hose comes standard with brass fittings but you can choose to upgrade to Stainless Steel Fittings, optimal for salt water use. And we provide any size PRO hose (HO5700), these options are provided for FREE above.