SeaStar Front Mount Cylinder

FRONT MOUNT SYSTEM

Part# HC5345, HC5347, HC5348

Features
Independent engine tilt for twin engine installations. Easy steering. 5 turns lock to lock steering response.
Applications
General purpose system. Single and multiple engine capability. Total power to 700 HP *counter-rotating. Typical applications include center console fishboats and cruisers.
[Dimensions]

How to select a Front Mount Outboard Steering System

From the order guide below select the system configuration based on:
a) the number of engines, and
b) the total engine power to be installed.
From the application guide below confirm that the Front Mount Cylinder will fit your specific make, model, and year of engine. Select the adapter kit for single engines or the tie bar kit for dual engines.
From the order guide select the appropriate helms and accessory hardware for each steering station.
From the order guide select the fitting and hose kits required for the installation. Note: for hoses add the distance required, in feet to the last two digits of the part number.
Confirm that there is sufficient space available in the splashwell and dash areas for the steering components. See WARNING.

Not recommended for use in installations where:
a) chopper, cleaver or surface piercing propellers are used,
b) the engine is highly elevated on the transom,
c) engine trim tabs have been removed,
d) the boat speed exceeds 75 mph (120 km/h), or
e) the power exceeds maximum Coast Guard or M.O.T. recommendations for the boat.

300HP+ OUTBOARD INSTALLATION RECOMMENDATIONS

With the introduction of heavier, higher horsepower engines producing more torque, Teleflex Marine has updated its recommendations across various applications (single and multiple engines, different hull types, etc.) Please read carefully to ensure that your current steering system provides the best comfort versus performance available.

ENGINE

SEASTAR FRONT MOUNT
(Normal Use)

SEASTAR FRONT MOUNT
(Aggressive Use – See Note 1)

HYNAUTIC K-6
(Normal Use Only)

SINGLE ENGINE

SINGLE CYLINDER
350HP Max
75 MPH Max
HC53xx Cylinder (See Note 2)

SINGLE CYLINDER
350HP Max
HC53xx Cylinder (See Note 2 & 3)

SINGLE CYLINDER
300HP Max
55 MPH Max

DUAL ENGINE
NON-COUNTER
ROTATING

SINGLE CYLINDER
450HP Max
55 MPH Max
HC53xx Cylinder
HO60xx Tiebar

SINGLE CYLINDER
Not Recommended

SINGLE CYLINDER
400HP Max
55 MPH Max

DUAL CYLINDER
600HP Max
55 MPH Max
HC53xx Cylinders
HO60xx Tiebar

DUAL CYLINDER
700HP Max
HC67xx Cylinders (See Note 2 & 4)
HO67xx Tiebar

DUAL CYLINDER
500HP Max
55 MPH Max

DUAL ENGINE
COUNTER
ROTATING

SINGLE CYLINDER
600HP Max
55 MPH Max
HC53xx Cylinder
HO60xx Tiebar

SINGLE CYLINDER
Not Recommended

SINGLE CYLINDER
400HP Max
55 MPH Max

DUAL CYLINDER
600HP Max
55 MPH Max
HC53xx Cylinders
HO60xx Tiebar

DUAL CYLINDER
700HP Max
HC67xx Cylinders (See Note 2 & 4)
HO67xx Tiebar

DUAL CYLINDER
500HP Max
55 MPH Max

TRIPLE ENGINE
ONE WITH COUNTER
ROTATING

DUAL CYLINDER
900HP Max
55 MPH Max
HC53xx Cylinders
HO60xx Tiebar

DUAL CYLINDER
1050HP Max
HC67xx Cylinders (See Note 2 & 4)
HO67xx Tiebars
HA67xx Center Engine (See Note 2)
Bracket Kit

NOT RECOMMENDED

TRIPLE CYLINDER
900HP Max
55 MPH Max
HC53xx Cylinders
HO60xx Tiebar

TRIPLE CYLINDER
1050HP Max
HC67xx Cylinders (See Note 2 & 4)
HO67xx Tiebars

NOT RECOMMENDED

NOTES:

1.	Teleflex has specific steering equipment for boats that are driven aggressively, used in severe conditions or with more than 300 HP per engine.
2.	ALL ENGINES over 300 HP and all boats that are driven aggressively must use a high strength tiller bolt, kit part # HA5822. All front mount cylinders built after June 15, 2007 will have this high strength bolt included in the box. High strength tiller bolts can be identified by the marking 'TFX – ARP' on the head of the bolt (refer to NOTICE below).
3.	HC63xx PRO Cylinders are designed for all those critical high speed, single outboard engine boats, such as Bass, Flats combo Race/Ski and other performance orientated boats capable of speeds in excess of 65 mph. For optimal performance, the use of SeaStar PRO Kevlar Steering Hoses is recommended.
4.	HC67xx Tournament cylinders are designed for use with high powered fishing/sport boats. If your application calls for dual or triple outboard engines, is capable of speeds exceeding 55 mp/h and runs ion open water, Tournament Cylinders should be used.

Order Guide

ENGINE/CYLINDER CONFIGURATION	Description	Qty. Req.	Model	Part #
SINGLE ENGINE (Single Cylinder) Applications up to 350HP Max. Number of Turns = 5	Cylinder Helm Hose Kit Oil	1 1 1 3	Front Mount SeaStar I–Standard * Outboard Hose SeaStar Oil	HC5345 HH5271 HO51__ HA5430
	For Extra Steering Station Add:
	Helm Fitting Kit Hose Kit Oil	1 1 1 1	SeaStar I–Standard * Add a Station Outboard Hose SeaStar Oil	HH5271 HF5501 HO51__ HA5430
DUAL ENGINE (Single Cylinder) Non-Counter Rotating Applications up to 450HP Max. Counter Rotating Applications up to 700HP Max. Number of Turns = 5 Tournament cylinders required for agressisve use.	Cylinder Tie-Bar Kit Helm Hose Kit Oil	1 1 1 1 3	Front Mount SeaStar I–Standard * Outboard Hose SeaStar Oil	HC5345 HO60__ HH5271 HO51__ HA5430
	For Extra Steering Station Add:
	Helm Fitting Kit Fitting Kit Oil	1 1 1 1	SeaStar I–Standard * Add a Station Outboard Hose SeaStar Oil	HH5271 HF5501 HO51__ HA5430
DUAL ENGINE (Dual Cylinder) Non-Counter Rotating Applications up to 700HP Max. All Counter Rotating Applications Number of Turns = 7 Tournament cylinders required for agressisve use.	Cylinder Tie-Bar Kit Helm Hose Kit Hose Kit Hose Kit Fitting Kit Oil	2 1 1 1 1 1 1 3	Front Mount SeaStar II–Standard ** Outboard Hose Outboard Hose Outboard Hose Tee Fittings SeaStar Oil	HC5345 HO60__ HH5272 HO51__ HO51__ HO51__ HF5530 HA5430
	For Extra Steering Station Add:
	Helm Fitting Kit Hose Kit Oil	1 1 1 1	SeaStar II–Standard ** Add a Outboard Hose SeaStar Oil	HH5272 HF5501 HO51__ HA5430
OPTIONAL EQUIPMENT	Back Plate Kit (for use with Standard Helms) 20 Degree Wedge (for use with Standard Helms) Autopilot Fitting Kit (for use with all Helms) * Tilt Helm-SeaStar I * Sport Tilt Helm-SeaStar I * Rear Mount Helm-SeaStar I Tilt Helm-SeaStar II Sport Tilt Helm-SeaStar II ** Rear Mount Helm-SeaStar II			HA5478 HA5419 HF5501 HH5741 HH5291 HH5261 HH5742 HH5292 HH5262

Application Guide

Single Engine Applications

If your engine's Horsepower rating is 300+, please refer to our 300HP + Outboard Installation Recommendations prior to selecting a cylinder from this application guide to ensure that you are selecting the correct cylinder for your engine/boat.

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

40-90HP
100-250HP 2-STROKE
80-225HP 4-STROKE
150-250 HPDI
300 HPDI
25-60HP 4-STROKE
F300–F350

HC5345
HC5345
HC5345
HC5345
HC5358
HC5348
HC5345

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: May 23rd 2008

		High Strength Tiller bolt, part# HA5822. ALL cylinders shipped after June 1st, 2007 will have this bolt included in the cylinder package.

Application Guide

Twin Engine Applications

If your engine's Horsepower rating is 300+, please refer to our 300HP + Outboard Installation Recommendations prior to selecting a cylinder from this application guide to ensure that you are selecting the correct cylinder for your engine/boat.

ENGINE
Manuf.

Year

Model

Cylinder

Tie Bar Kits

Notes

Twin Engine
Single Cyl.

Twin Engine
Dual Cyl.

FORCE

1985 TO DATE

90-150HP

HC5345

HO5008A

HONDA

1996 TO DATE
1998 TO DATE
1998 TO DATE
2001 TO DATE
2001 TO DATE
2003 TO DATE

75-90HP
115-130HP
30-50HP
150HP 4-STROKE
225HP 4-STROKE
BF135HP

HC5345
HC5347
HC5345
HC5345
HC5345
HC5345

HO6001
HO5063
HO6001
N/A
HO6001
HO6003

HO6002
HO5064
HO6002
HO6002
HO6002
HO6002

See Note 3
See Note 5
See Note 2
See Note 7

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

HO6003
HO5001A
HO6003
HO6003
HO6003
HO6003
HO6003
HO6003

HO6002
HO5030
HO6002
HO6002
HO6002
HO6002
HO6002
HO6002

See Note 5
Inc. ETech

See Note 2
See Note 2

MERCURY

1984 TO 1994
1989 TO DATE
1996 TO DATE
1998 TO DATE
2002 TO DATE
2003 TO DATE

2.4/2.5HP EFI
75-300HP
75-200HP 2 & 4-STROKE
30-60HP
225HP 4-STROKE
250-300HP XS

HC5345
HC5345
HC5345
HC5345
HC5358
HC5345

HO6001
HO6001
HO6001
HO6001
HO6001
N/A

HO6002
HO6002
HO6002
HO6002
HO6002
HO6002

See Note 4
See Note 3

See Note 2
See Note 1
See Note 6

NISSAN

1990 TO DATE

90-140HP

HC5345

HO6001

HO6002

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

HO6003
HO6001
HO6003
HO6001
HO6003
HO6003

HO6002
HO6002
HO6002
HO6002
HO6002
HO6002

NOT 1996

See Note 2
See Note 2

US MARINE

1996 TO DATE

90-120HP

HC5345

HO6001

HO6002

YAMAHA

1990 TO DATE
1986 TO DATE
1997 TO DATE
2000 TO DATE
2002 TO DATE
2003 TO DATE

40-90HP
100-250HP 2-STROKE
80-225HP 4-STROKE
150-250 HPDI
300 HPDI
25-60HP 4-STROKE

HC5345
HC5345
HC5358
HC5358
HC5358
HC5348

HO6003
HO6001
HO6001
HO6001
HO6001
HO6003

HO6002
HO6002
HO6002
HO6002
HO6002
HO6002

See Note 1
See Note 1

See Note 2

2006 TO DATE

F300–F350

MUST use Tornament Cylinders

YANMAR

1994 TO DATE

90-120HP

HC5345

HO6001

HO6002

NOTES:

1.	HC5345 is optional for SINGLE Engine ONLY applications. DO NOT use HC5345 for Twin engine applications as operational interference may occur.
2.	Requires kit HO5090.
3.	Minimum engine center = 27".
4.	May require extensive cowling modifications.
5.	HO5030 and HO5064 comes without tie-bar.
6.	One cylinder per engine. Must use Mercury supplied tiller bolt for installation.
7.	Interference will occur when using a single HC5345 cylinder and HO6003 tiebar when installed in the aft hole on the steering arm. Options include, a) install tiebar into most forward hole (this will limit steering articulation), b) purchase K-6 Cylinder, and tiebar kit part # HO5009. There will no be no interference when using twin HC5345 cylinders.

Revision Date: May 23rd 2008

Other Applications

The SeaStar Front Mount Steering System is also available for many other marine applications, including:

• Triple Engine Configurations (also available in downloadable PDF Supplements).

• Tournament Series Tiebar Cylinders.

• Tandem Catamaran Configurations (also available as a downloadable PDF Supplement).

Cylinder Installation

Operational interference of the steering cylinder/cylinder fittings and jackplates/transom/splashwell can occur under certain conditions. Check installation thoroughly throughout the full range of Motor Tilt, Jack Height and Trim before making final installation.

If interference does occur, contact:
Teleflex Canada for additional information/options.
Telephone: (604) 270-6899 or (941) 488-6744
If interference is not eliminated total steering loss can occur, causing property damage and/or personal injury.

Motor Well Dimensions Required

No. OF ENGINES

Minimum Engine
Center Distance

1
2

22" (559mm)
44" (1118mm)

6" (152mm)
6" (152mm)

5" (127mm)
5" (127mm)

N/A
26" (660mm)

a)	Dimensional restrictions also apply to external motor mount brackets.
b)	Maximum engine center distance for twin engine applications is 36" (914mm) using the standard tiebar. Dimension 'A' would have to be increased proportional to the tiebar length.
c)	Minimum engine center distance is 26" unless engine manufacturer recommendation is greater.

Typical Tie Bar Kits

Twin Engine Single Cylinder Part # HO6001

Twin Engine Twin Cylinder Part # HO6002

For specific installation details and part numbers required for individual applications, please refer to our Supplement Instructions. These are available in downloadable PDF format.

Liquid Tie Bar Kit

Part # HA5471-2

The Cylinder Alignment Valve will allow for the periodic required realignment of two outboard motors or rudders that are linked together with a Hydraulic Tie Bar as opposed to a solid link or Mechanical Tie Bar.

Generally found on Pontoon Boats and Catamarans

Teleflex recommends the use of a mechanical tie bar when possible. There is no true substitute for a mechanical connection. The 'Liquid Tie Bar Valve' will require re-alignment. The frequency of re-alignment is too difficult to predict here as several application specific variables need to be taken into consideration.