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Home > Engine Parts > Boat Steering System > Boat Hydraulic Steering System > Boat Hydraulic Steering Kit >
Seastar Hydraulic Steering Kit Up To 350 HP Outboard(No Hose) , HK6400A-3

Seastar Hydraulic Steering Kit Up To 350 HP Outboard(No Hose) , HK6400A-3




Availability: Usually ships the next business day
ON SALE!!
Seastar Hydraulic Steering Kit Up To 350 HP Outboard(No Hose) , HK6400A-3
tel-hk6400aList Price: $US 1,513.00Our Price: $US 899.00

Installation Manuals

Product data sheet

The ultimate steering for high performance boats.

The SeaStar No FeedBack 1.7 steering system is designed for single and twin nonpower-assisted outboard engines up to 600HP, cruisers, runabouts, offshore fishing boats and more. Suitable for speeds up to 60MPH.

Features

• Patented steering lock valves
• Low friction hydraulic steering system
• 4.25 turns from lock-to-lock
• Compact helm has only a 4-7/16” footprint – needs    only 3” dash hole (tilt requires larger hole)
• Optional SeaStar Pro cylinders with longer shaft bushings and even larger pivot bushings for an even more ‘solid feel’
• Factory swaged hoses are Kevlar®  reinforced
• Packaged complete with helm, cylinder, fittings, oil, bleeder kit and detailed instructions
• Standard 3/4” tapered steering shaft
• Fast, easy installation
• Meets A.B.Y.C standards
• Meets N.M.M.A. certification requirements
• SeaStar Pro is  suitable for use with jack plates and  performance props
• Dimensional restrictions also apply to external motor mount brackets

Components:


- SeaStar 1.7 Helm HH5271-3
- Front Mount Outboard Cylinder HC5345-3

- SeaStar Oil (1 quart mil spec H5606) - 2 per kit HA5430

Single Engine Applications
 
ENGINE
Manuf.
Year
Model
Cylinder
Notes
FORCE 1985 TO DATE 90-150HP HC5345  
 
HONDA 1996 TO DATE
1998 TO DATE
1998 TO DATE
2001 TO DATE
2003 TO DATE
 
75-90HP
115-130HP
30-50HP
135-225HP 4-STROKE

BF135HP
HC5345
HC5347
HC5345
HC5345
HC5345


See Note 1
 
 
JOHNSON /
EVINRUDE
1977 TO 1990
1988 TO 1997
1991 TO DATE
1996 TO DATE
1998 TO DATE
2000 TO DATE
2002 TO DATE
2005 TO DATE
 
65-300HP
250-300HP V8
40-250HP
75-250HP FICHT
40-140HP 4-STROKE
115HP FICT
200-225HP 4-STROKE
E250 DPX VINDICATOR
HC5348
HC5342
HC5345
HC5345
HC5358
HC5358
HC5345
HC5348


Inc. ETech Engines

See Note 1
See Note 1
 
MERCURY 1984 TO 1994
1989 TO DATE
1996 TO DATE
1998 TO DATE
2003 TO DATE
 
2.4/2.5HP EFI
75-300HP
75-225HP 4-STROKE
30-60HP
250-300HP XS
HC5345
HC5345
HC5345
HC5345
HC6345
See Note 2


See Note 1
See Note 3
 
NISSAN 1990 TO DATE
 
90-140HP
 
HC5345
 
 
 
SUZUKI 1986 TO DATE
1986 TO 2002
1986 TO DATE
1996 ONLY
1998 TO DATE
2003 TO DATE

 
100HP
115-140HP
150-300HP 2 & 4 STROKE
115-140HP
40-140HP 4-STROKE
90HP 4-STROKE
HC5345
HC5345
HC5345
HC5348
HC5358
HC5358

NOT 1996


See Note 1
See Note 1
 
US MARINE 1996 TO DATE 90-120HP HC5345  
 
YAMAHA 1990 TO 2003
1986 TO DATE
1997 TO DATE
2000 TO DATE
2002 TO DATE
2003 TO DATE
2007 TO DATE
2010 TO DATE
 
40-90HP
100-250HP 2-STROKE
80-225HP 4-STROKE
150-250 HPDI
300 HPDI
25-60HP 4-STROKE
F300–F350
70HP 4-STROKE
 
HC5345
HC5345
HC5345
HC5345
HC5358
HC5348
HC5345
HC5348
 

See Note 5
See Note 5


See Note 1
See Note 4
 
YANMAR 1994 TO DATE 90-120HP HC5345  
 
NOTES:
1. Requires kit HO5090.
2. May require extensive cowling modifications.
3. MUST use High Strength Tiller bolt, part # HA5822. Refer to the NOTICE below identifying the high strength bolt.
4. Optional cylinder part # HC5358. Slight interference may occur when using the HC5358, with the engine in the full tilt position.
5. Cylinder part # HC5358 may also be used in these single engine applications.
  Revision Date: June 29th 2010
    High Strength Tiller bolt, part# HA5822.
ALL cylinders shipped after June 1st, 2007 will have this bolt included in the cylinder package.

How it Works

The SeaStar Hydraulic System

High-horsepower/high-speed boating is here and steering systems must perform at maximum capacity. The SeaStar Hydraulic Steering System is designed to provide that extra margin of muscle when needed and easily handles Outboard, Sterndrive and Inboard engines in boats up to 50 feet.

System selection, installation and service is substantially simplified with just three major components – helm, cylinder and tube or hose. SeaStar has a comprehensive range of available cylinders to handle a variety of Outboard, Sterndrive and Inboard steering applications. These are suitable for both pleasure and commercial applications. Extra steering stations and/or autopilots are easily added.

SeaStar hydraulic steering is a total commitment to quality, performance and simplicity.

SeaStar, the hydraulic steering system that is:

Easy to install…
Only three components: helm, cylinder & tube or hose
Compact and attractive helm design
Variety of helm mounting configurations
Simple tube/hose fitting connections
Clear, complete installation instructions

Easy to fill and purge…
Engineered bleed fittings on the cylinders
A helm and lock valve design that enhances air removal
A no-mess filler device
A filling and purging time of normally less than 30 minutes
Easy to check for proper installation
Easy purging check via filler device
No searching for difficult-to-find air leaks

Easy to turn…
Anti-friction piston points

Designed to provide many years of service…
Precision built
Heavy-duty bearings instead of bushings
All metal construction
No corrosive materials exposed to marine environment
Field replaceable helm and cylinder shaft seals
A no-hassle warranty – 2 years for pleasure use – 1 year for commercial use

System Components

SeaStar manual hydraulic steering systems are simple and efficient. The basic system consists of three main components:
1. the helm pump,
2. the cylinder, and
3. the hose or tubing required to connect the cylinder to the helm pump.

These basic components are necessary in all applications. However as the system variables increase (e.g.: multiple engines, rudders, steering stations and autopilots), additional components may be required.

1. The Helm Unit
The SeaStar helm pump is an axial piston pump specifically designed for manual steering. It has a built-in lock valve to prevent the steering load from feeding back to the driver. The lock valve will not allow the rudder or drive unit to move until you move it with the steering wheel. The lock valve section of the helm also includes a relief valve. This relief valve provides over-pressure protection for mechanical components and hydraulic hoses and fittings.

2. The Cylinder
The most important differences between the variety of SeaStar steering systems available is the cylinder selection. The SeaStar system has a cylinder for most steering applications.

3. Hoses and Tubes
Required to provide a path for the fluid to flow under pressure from the helm pump to the cylinder.

How it Works

The SeaStar system is a two-line system. This makes operation very simple

1. The steering wheel, which is attached to the helm pump, is rotated in the desired direction (i.e.: a turn to starboard or clockwise rotation).
2. Oil is pumped out the corresponding port from the rear of the helm into the starboard line and then into the cylinder.
3. This causes the cylinder rod, which is attached to the vessels rudder or drive unit, to move (i.e.: rod moves to port) thus causing the vessel to alter course.
4. Oil displaced from the opposite end (i.e.: the port end) of the cylinder flows (i.e.: into the port line) back to the helm pump.
5. For steering in the opposite direction, simply turn the helm the other way.
6. When no course corrections are required, the integral lock valve holds the rudder or drive unit stationary.








  
       


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