SeaStar PA1315-2 PRO Power Assist Unit - 12V24V - 15 The SeaStar Power Assist PRO is specifically designed for high-torque single engine outboard applications fitted with SeaStar Pro Helms, such as performance bass boats. Suitable for most boat types, the SeaStar Power Assist uses an electronic controlled hydraulic pump to provide on-demand power steering. It is installed into the hydraulic steering circuit between the helm and steering cylinder. The Power Assist unit is powered from the boats b