SeaStar offers rugged 3-line Hynautic Heavy Duty steering systems for most work and pleasure vessels up to 70 feet.

Heavy Duty helms combine one or two bi-directional axial piston pumps with pilot check and make-up check valving. The result is a unit which prevents rudder feedback, is very efficient (even at low RPM), and is immediately adaptable to multi-station use.

A wide choice of helm displacements and cylinder configurations make it easy to spec a system which can handle a variety of large boat performance requirements and accommodate most user preferences.


**Low friction heavy duty hydraulic steering.
**Helm/cylinder combinations for most inboards. Marine grade materials.
**Heavy duty helms available in three displacements, to accommodate most applications and user preferences.
**Helms available with 1” straight shaft or 3/4” tapered. Mount facing any direction.
**Quick air purge relief valve.
**Fluid fill at remote reservoir.
**Heavy duty brass cylinders. Two-axis articulation. Easy installation for single or dual rudder vessels.
**Meets or exceeds applicable standards.

**Accepts most steering wheels.

Add Text Here...