SeaStar HK6400-4 Hydraulic Marine Steering Kit

SeaStar HK6400-4 Hydraulic Marine Steering Kit

The Dometic SeaStar Outboard Steering Kit HK64004 is unmatched in comfort and control for use on single and dual non-power assisted outboard engines up to 350HP (700 combined HP for counter-rotating duals) that have ABYC standard engine tilt tube.

Important: SeaStar Helm Update to -4

The latest series of helms have been redesigned to provide a better experience for the vessel operator:

• New valve technology ensures tighter, quieter, and more responsive steering, while minimizing the potential for chattering when dealing with overrunning steering loads.
• More durable check valves, making the entire steering system more resilient to the rigors of trailering.
• Revamped Design to enhance their aesthetics, and has introduced a new fill port plug design for easier maintenance.
• Kits with hoses are discontinued, we provide the hose and option to upgrade the hose fittings ON US!
• HK6400-4 replaces the HK6400A-3, HK6400 and is the direct replacement

Choose Hose Length & Fitting Style:

• Add any HO5100 steering hose length with the drop down above at no additional charge.
• Choose to upgrade the hose fittings to stainless steel, ideal for salt water applications at no additional charge.
• These options are specific to Seatech Marine Products.

Features:

• Unmatched low friction hydraulic steering system.
• 5 turns lock-to-lock for single cylinder use.
• The HH5271-3 front mount helm pump only needs a 3" cutout in the dash
• Standard 3/4" Taper shaft on the helm pump
• Can be upgraded to dual station and/or dual outboards

Specifications:

• Suitable for boats that travel up to speeds of 60MPH
• Helm Pump: 1.7 cubic inches
• Stainless Steel shaft
• 1000 PSI rating for helm and cylinder
• Cylinder: 8.3 cubic inches
• For boats that reach speeds up to 60MPH, for boats over 60MPH, purchase the HK7500-4

Specifications for Items Included with Pictures:

• HH5271-4 1.7 Front Mount Helm Pump
• Dash Cut Out Dia: 3"
• Shaft Size: 3/4" Taper
• HC5345-3 Front Mount Outboard Cylinder
• Bore Dia: 1.375"
• Displacement: 8.34in³/rev
• HO5100 10-35' Standard Hoses
• PSI Rating: 1000
• Length: 10ft - 35ft
• Connections: Brass or Stainless Steel
• HA5430H SeaStar Hydraulic Steering Fluid
• Quantity: 2 Quarts

Downloads & Resources:

• SeaStar Front Mount Cylinder Installation Manual [PDF]
• SeaStar Front Mount Helm Pump Installation Manual [PDF]
• Cylinder Installation Manual [PDF]
• Helm Pump Installation Manual [PDF]
• SeaStar Steering Catalog [PDF]
• SeaStar Hydraulic Steering Selection Guide [PDF]
• Dometic Seastar Hydraulic Build Guide [HERE]

Will This Cylinder Work on my Boat?

• If you have a Single Outboard Engine (Normal Use)

Questions?

• Tech Support: Tech Support Page
• Check Stock: Stock Inquiry Page
• How to Measure Seastar Hose: Guide

• No Sales Tax on Purchases Outside of California
• Buy Now Pay Later with Affirm or PayPal Pay Later
• FREE Ground Shipping to the Contiguous 48 States
• Formerly Teleflex, Seastar is now Dometic Marine
• Seatech Marine Products, Inc. is an authorized dealer, hose manufacturer, and service center for Dometic Marine

International, USVI, Puerto Rico, Hawaiian & Alaskan Customers: We Ship Worldwide and USPS, Shipping Cost May Quote Too High on Our Web Site, Contact Us for A Quote.