or 4 payments of 
Description
Front mount cylinder – Yamaha HD (suits Catamaran fluid link apps.)
SeaStar™ Pro Hydraulic Steering System
SeaStar’s premier No FeedBack™ System, designed to be the best steering system available for the performance boating enthusiast. SeaStar® Pro is recommended for single outboards up to 300HP, even with jackplates and performance props.
Features:
• A lock valve unique to SeaStar® Pro, provides instant steering response without loss of engine feel or comfort
• High speed course running with unrivalled response
• Effortless No FeedBack™ steering
• Safer trim adjustment for added performance
• Superior boat control
• Meets ABYC/NMMA/BIA standards
Anodised alloy cylinder and chromed stainless steel push rod for long seal life. Robust bushings.
Patented nfb lock valve combines instant response with feel
Accepts steering wheels to 660mm (28″), 510mm (20″) tilt – Standard 3⁄4″ tapered steering shaft
SeaStar™ Pro Hydraulic Cylinder
The front mount Pro Hydraulic Cylinder by SeaStar® has been specifically designed and manufactured to increase feel and control of high performance outboard powered vessels that
have a high level of wear and tear and are used frequently. Key features of the Pro Cylinder include, heavier duty pivot plate bushes that reduce wear in harsh conditions and longer
cylinder rod bushes which create a better seal on the end gland. The cylinder is more rigid due to the addition of the key ways on the support rod and support brackets. The patented
‘pivot’ mount design, utilised on the Pro Cylinder, guarantees continuous smooth, comfortable steering, and maximum efficiency even at the ‘hard-over’ positions.
APPLICATION GUIDE
| MFG | YEAR | MODEL | CYLINDER | NOTES |
| Honda | 1996-Date | 150-300hp | HC6345-3 | Not available for BF series engines. |
| Honda | 2001Date | BF200-BF250 | HC6345-3 | Requires HA5472 Optional cylinder HC5445-3 |
| Honda | 2003Date | BF150 | HC6345-3 | Requires HA5472 Optional cylinder HC5445-3 |
| Johnson / Evinrude | 1977-1990 | 150-300hp | N/A | |
| 2002-Date | 150-250hp 4-Stroke | HC6345-3 | Optional Cylinder HC5345-3 | |
| 2003-Date | 150-300hp Etech | HC6345-3 | Optional Cylinder HC5345-3 | |
| 2005-Date | E250hp Vindicator | N/A | ||
| Mercury | 1989-Date | 150-300 XS Engines | HC6345-3 | |
| Mercury | 1989-Date | 150-300hp 2-Stroke & 4-Stroke | HC6345-3 | Optional Cylinder HC5345-3 |
| Suzuki | 1986-Date | 150-300hp 2 and 4-Stroke | HC6345-3 | Optional Cylinder HC5345-3 |
| Yamaha | 1986-Date | 150-350hp 2 and 4-Stroke | HC6345-3 | Optional Cylinder HC5345-3 |
WARNING:
SeaStar PRO Steering Helms can not be used with an unbalanced steering cylinder.
Specifications
Volume 136.6cc 8.34cu.in balanced displacement
Bore 35mm 1.375 in
Stroke 203mm 8 in
Overall width 544mm 21 in
Shaft Diameter 19mm .75in
Applications up to 300HP maximum single engine. Please refer to Seastar website for full specifications / limitations.
