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Writer's pictureMike Hill

SeaStar Hydraulic Steering System Part Numbers

Updated: 2 days ago

SeaStar Solutions offers a comprehensive range of hydraulic steering systems tailored for various boating and marine applications, each comprising specific components with unique part numbers.

We provide this as reference for those who are upgrading to our complete 350 HP Hydraulic Steering Systems, 700 HP Hydraulic Steering Systems, custom length steering hose lines, our faster 2.7 Helm, or 700 HP Front Cylinder or use our Self-Bleeding Kit (for one-person operation).


We've made sure all our steering parts are compatible and interchanging with Sea Star to ensure the we can cost effectively solve our customer rigging needs. Below is an organized overview of key boat hydraulic steering parts and their associated part numbers:


1. Helm Pumps:

  • SeaStar 1.7 Front Mount Helm: HH5271-3

  • SeaStar 2.0 Front Mount Helm: HH5273-3

  • SeaStar 2.4 Front Mount Helm: HH5272-3

  • SeaStar 1.7 Rear Mount Helm: HH5261-3

  • SeaStar 2.4 Rear Mount Helm: HH5262-3

  • SeaStar 1.7 Sport Tilt Helm: HH5291-3

  • SeaStar 2.4 Sport Tilt Helm: HH5292-3

  • SeaStar 1.7 Classic Tilt Helm: HH5741-3

  • SeaStar 2.4 Classic Tilt Helm: HH5742-3

SeaStar Pro Helms:

  • SeaStar Pro 1.7 Standard Mount: HH5779-3

  • SeaStar Pro 1.7 Rear Mount: HH5778-3

  • SeaStar Pro 1.7 Tilt: HH5773-3

  • SeaStar Pro 2.0 Standard Mount: HH5770-3

  • SeaStar Pro 2.0 Rear Mount: HH5771-3

  • SeaStar Pro 2.0 Tilt: HH5774-3

  • SeaStar Pro 2.0 Sport Tilt: HH5290-3

  • SeaStar Pro 2.4 Standard Mount: HH5772-3

2. Steering Cylinders:

  • Front Mount Cylinders: HC5340-3, HC5342-3, HC5345-3, HC5347-3, HC5348-3, HC5358-3

  • Side Mount Cylinder: HC5370-3

  • Splashwell Mount Cylinder: HC5380

  • Catamaran/Pontoon Cylinder: HC5375-3

  • Inboard Cylinders: HC5312-3, HC5313-3, HC5314-3, HC5318, HC5319

3. Hose Kits:

  • SeaStar Hose Kit (2 hoses): HO51xx

  • SeaStar Bulkhead Hose Kit (2 hoses): HO81xx

4. Fitting Kits:

  • Add-A-Station Kit (Nylon/Copper Tube): HF6010

  • Add-A-Station Kit (Hose): HF6007

  • Autopilot Fitting Kit (For All Helms): HF5502

5. Tubing:

  • 3/8” Diameter Nylon Tubing: HT5xxx

6. Steering Fluid:

  • SeaStar Oil (1 Quart): HA5430

  • SeaStar Oil (1 Gallon): HA5440

7. Service Items:

  • Helm Shaft Seal and Locknut Kit: HP6032

  • Steering Wheel Hardware Kit: SA27454P

8. Optional Equipment:

  • SeaStar Round Bezel Kit: HA5478

  • SeaStar Backplate Kit: HA5418

  • SeaStar 20° Dash Wedge Kit: HA5419

  • Power Assist Steering: PA1200-2


For a detailed and comprehensive list of all components and their respective part numbers, please refer to the SeaStar Solutions Parts Catalog.


*Note: The 'xx' in part numbers (e.g., HO51xx) denotes variable lengths or specific configurations. It's essential to select the appropriate specifications based on your boat's requirements.


By utilizing the correct part numbers, you can ensure compatibility and optimal performance of your SeaStar steering system.














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