Description
New SeaStar Solutions HK6400A-3 SeaStar hydraulic outboard steering system.
Features
- 5 Turns Lock-to-Lock (1.7 cu. in. displacement helm)
- Standard 3/4″ Tapered Keyed Steering Shaft (threaded end of steering shaft is 5/8″-18UNF)
- Patented No FeedBack™ (NFB) Lock Valves
- Replaces and Supersedes Teleflex Marine SeaStar HK6400A and HK6400
- Exceeds NMMA and ABYC Standards
Works ForBoats up to 60 mph with single outboards up to 300 HP or twin outboards up to 450 hp (non-counter rotating) / 600 hp (counter rotating). Twin engine applications require a tie bar kit. High performance boats, top speeds above 60 mph, fast bass boat, or boats with dual-cable steering will require the SeaStar Pro kit. The SeaStar requires a 3″ (76mm) cut-out hole in the dash and a minimum 21″ (534mm) splashwell width.
Cylinder/RamThe HC5345-3 cylinder is suitable for most outboards. Use the application guide in the product images to double-check what cylinder your outboard requires. If you need a cylinder other than the HC5345-3, find the SeaStar kit that comes with it here: HC5347-3, HC5348-3, or HC5358-3. If your outboards needs the HO5090 spacer kit, you can find it here.
HosesThis SeaStar kit does not include a hose kit. If you need one with a hose kit, please choose one from here. You can use the measuring guide in the product images to see what length your boat requires.
| Part Number | Qty | |
|---|---|---|
| Helm | HH5271-3 | 1 |
| Cylinder | HC5345-3 | 1 |
| Hose Kit | Not included | |
| Fluid/Oil | HA5430H | 2 quarts |
| Filler Kit | HA5438 | 1 |
| Instructions | 1 |
For the tilt helm SeaStar kit, go here.



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