SeaStar HH6543-4 Classic Tilt 2.0 Hydraulic Boat Helm Pump

SeaStar HH6543-4 Classic Tilt 2.0 Hydraulic Boat Helm Pump

The world's most popular hydraulic boat steering helm (HH65434) offers smooth, efficient no feedback steering for inboard and outboard applications. Super-efficient steering for today’s high performance hulls with single or multiple outboards up to 700 HP combined. It’s the OEM Choice for center consoles, cruisers and more.

Important: SeaStar Helm Update to -4

The latest series of helms has 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.
• HH6543-4 replaces the HH6543-3, HH6543 and is the direct replacement. It also replaces the HH5743, some modifications may need to be made.

Applications:

• Most Hydraulic Steering applications for inboard/sterndrive/outboard boats up to 50ft
• Single outboard engine boats that travel up to 55MPH, for boats over 55-60MPH see PRO Helm Pumps
• Capable to be used in multiple stations.

Features:

• Maintenance Free and Fits Most Dashes
• Marine Grade Aluminum Shaft
• 48° Tilt Range (12° Down / 36° Up)
• 5 Positive Lock Positions
• Shaft Seals to Prevent Water Ingress
• Compact Footprint
• Accepts Wheels up To 20"
• Small 4.5" Hole Cutout in Dash
• Pre-Loaded Dual Tapered Bearings
• Warranty: Limited 2 Year

Specifications:

• Front Mount Installation
• 2.0 cubic inches
• 1000 PSI Relief Valve Settings
• Replaces Teleflex Traditional Tilt Helm: HH5743

What Comes In The Box:

• HH6543-4 Helm Pump
• Mounting Hardware
• HF6004 Fitting Kit 2x ORB-5 90° repositionable elbow fittings

Downloads & Resources: 

• SeaStar Boat Helm Installation Manual [PDF] 
• SeaStar Hydraulic Steering Selection Guide [PDF]
• SeaStar Marine Steering Catalog [PDF]
• Dometic SeaStar Hydraulic Build Guide [HERE]
• We can rebuild your HH6543-4 [HERE]

CAUTIONS:

• Do NOT use Teflon or Loctite on the fittings
• Do NOT try to install NPT fittings into helm pump as it may cause damage to the threads
• The fluid cap must be in the uppermost position at ALL times
• NEVER use brake fluid, only SeaStar Steering fluid or Mil Spec H5606 Fluid

Installation Notes:

• The helm pump is packaged with repositionable O-ring hose fittings (ORB)
• If a 20° mounting wedge is used, cut out dash as per mounting wedge template and mount helm directly to the 20° wedge
• The helm may be mounted with the helm shaft horizontal, vertical, or any angle in between
• Install the hose fittings before installing helm pump for ease of installation

Related Items & Spare Parts:

• HA5430H 1 Quart of SeaStar Fluid
• HA5438 Helm Bottle Filler Kit
• HP6032 Service Kit
• HF6004 Fittings
• HA5432 Non Vent Cap
• SeaStar Hose
• SeaStar Helm Pumps
• SeaStar Cylinders

SeaStar HH6543-4 Dimensions:

Questions?

• Tech Support: Tech Support Page
• Check Stock: Stock Inquiry Page
• Request a Shipping Quote: Request Quote Page

• No Sales Tax on Purchases Outside of California
• Buy Now Pay Later with Affirm or PayPal Pay Later
• Formerly Teleflex, SeaStar is now Dometic Marine
• Seatech Marine Products, Inc. is an authorized dealer, and service center for Dometic Marine

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