Dometic Hydraulic Steering Ordering Guide for Stern Drive Engines

The SeaStar sterndrive series from Dometic features easy installation, simple autopilot interface, and a simple multiple steering station connection.  The sterndrive series fits most power and non-power assist sterndrives, and fits single and multiple drive applications.

Steps to select a steering system for an sterndrive powered boat:
1. Select the drive configuration based on the number of drives.
2. From the application guide confirm that a cylinder is available for your specific make, model and year of drive unit. Select the cylinder that is appropriate for the drive.
3. Select the appropriate helm and accessory hardware. Note that helm pumps of different displacements are available for power steered sterndrives. The displacement of the helm affects the number of turns lock to lock. Select the helm displacement on the basis of the desired steering response.
4. Select the appropriate tube or hose and fitting kits.
5. Confirm that sufficient space is available in the dash and engine compartments for the equipment.

System Configuration Description Qty Model Sku #

Single & Dual Stern Drives

For dual sterndrive applications use engine manufacturer's supplied tie bar.

Cylinder
Helm

Steering fluid
Tube/hose
1
1

3

See application guide
SeaStar (see note 1)*
SeaStar (see note 2)**
SeaStar fluid (qt)


HH5271-3
HH5272-3
HA5430

For extra steering stations add:
Helm

Fitting kit


Steering fluid
1

1


1
SeaStar (see note 1)*
SeaStar (see note 2)**
Add a station
– for use with SeaStar Steering hose
– for use with SeaStar Steering tube/copper
SeaStar fluid
HH5271-3
HH5272-3

HF6007
HF6010
HA5430

Optional equipment

Back plate kit
20° wedge
Autopilot fitting kit
– for use with SeaStar hose
– for use with SeaStar tube/copper
Power assist steering 

All non-pro helm designs can be used
  For standard helms
For standard helms






HA5418
HA5419

HF6007
HF6010
PA1200-2

1. SeaStar helms are the standard recommendation for both non-power and power steered applications.
2. SeaStar helms with a higher displacement can be specified for less wheel turns where faster response is desired.
3. For dual stern drives – use the tie bar supplied by the engine manufacturer.

NOTICE! These recommendations apply to factory stock stern drives only. Modified installations and high performance applications may require a higher capacity steering system. If in doubt, contact Dometic technical service for assistance.

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