1.7 Helm Outboard Hydraulic Steering Pump Hydraulic Pump HH5271-3 Front Mount. Compatible with Seastar HH5271-3: This helm pump is a direct replacement for Seastar HH5271-3 hydraulic steering system, designed for smooth, reliable steering in marine environments. Perfect fit, no modifications needed. Best choice of motor parts. Perfect for Cruisers, Center Consoles & Offshore Boats: Whether …