SeaStar HH6191-4 Sport Tilt 1.7 Helm Pump This hydraulic helm pump offers unmatched comfort and control out on the water. This SeaStar helm is one of the worlds most popular, offering smooth and efficient steering for single and multi-outboard engines. This no feedback hydraulic steering helm works for engines up to 350HP 700HP for combined counter rotating twins with speeds up to 60MPH. SeaStar Tilt steering helms provide top notch performance with excellent flexibility for smoother operation.