SeaStar HK6400A-3 Hydraulic Outboard Boat Steering Kit (No Hoses) Teleflex


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Product Details

New SeaStar Solutions HK6400A-3 SeaStar hydraulic outboard steering system.

  • 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 For
Boats 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.

The 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.

This 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.

DescriptionPart NumberQty
Hose KitNot included
Fluid/OilHA5430H2 quarts
Filler KitHA54381

For the tilt helm SeaStar kit, go here.

Additional information

Product Specifications
Part NumberHK6400A-3
Shipping Weight23 lbs
TypeBoat Steering Kit
Shipping Dimensions22" x 14" x 5"
Country of ManufactureCanada
BrandSeaStar Solutions
ReplacesTeleflex Marine HK6400A-3, HK6400A
Warranty2 Year
Item Weight19.8 lbs
Manufacturer Part NumberHK6400A-3
ManufacturerSeaStar Solutions
FitsPlease see application guide