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Copy of SeaStar HH6492-4 Sport Plus Tilt 2.4 Hydraulic Boat Helm Pump

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SKU:
HH6492-4-1
Condition:
New
  • Copy of SeaStar HH6492-4 Sport Plus Tilt 2.4 Hydraulic Boat Helm Pump
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$1,370.99
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Description

SeaStar HH6492-4 Sport Plus Tilt 2.4 Helm Pump

The Dometic SeaStar HH64924 is a high-displacement Sport Plus Tilt helm designed for precise, low-effort steering on heavier, higher-horsepower boats. It pairs the comfort of a 48° tilt mechanism with a robust 2.4 cu in/rev hydraulic pump and -5 ORB positionable stainless hose fittings for clean, leak-resistant installs. Compatible with all SeaStar cylinders and Power Assist systems, HH6492-4 is the right choice when you want fewer turns lock-to-lock and a premium tilt feel at the wheel.

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.
  • HH6492-4 replaces the HH6492-3, HH6492 and is the direct replacement

2.4 cu in 48° Tilt ORB -5 Ports SeaStar Fluid Only

Technical Specifications

Specification Value Notes
Model HH6492-4 (Sport Plus Tilt) SeaStar tilt helm; pair with SeaStar cylinders/hoses.
Displacement 2.4 cu in/rev (≈39 cc) Impacts steering “feel” and turns lock-to-lock.
Tilt Range 48° total Check wheel-to-knees clearance at all positions.
Ports / Fittings -5 ORB stainless (included) Use O-ring boss only; never NPT.
Shaft 3/4" tapered, keyed Wheel not included.
Mount SeaStar 3-bolt front mount Confirm behind-dash depth for tilt pod.
Typical L2L ≈3.5 turns Varies with cylinder volume and system layout.
Fluid SeaStar/BayStar steering fluid Do not mix; bleed completely if changing.
Warranty 2-Year Limited Follow Dometic installation practices.

Installation Checklists

Pre-Install Checklist

  • Verify cylinder displacement and helm placement (tilt clearance).
  • Inspect dash cutout and reinforce if needed.
  • Confirm hose length and routing plan (minimize tight bends).
  • Prepare only SeaStar/BayStar steering fluid and clean tools.
Tilt adds behind-dash depth; confirm wiring & hose sweep through the full tilt arc.

Bleed & Commissioning

  • Level the helm; fill reservoir; slow, full-stroke turns during bleed.
  • Eliminate aeration; re-bleed after sea trial if needed.
  • Recheck all fittings; verify equal stop-to-stop travel.

Tip: A clear catch bottle makes micro-bubbles easy to spot.

What’s Included

  • HH6492-4 tilt helm assembly
  • (2) -5 ORB stainless positionable fittings
  • Mounting hardware & instructions

Wheel, hoses, fluid, and cylinder sold separately.

Recommended Add-Ons

  • SeaStar hydraulic fluid (per manual)
  • SeaStar outboard front-mount cylinder (match to engine)
  • SeaStar -5 ORB hose kit(s) of correct length
  • Bleed/fill kit & clean catch bottle

Included vs. Required

Item Included Required Notes
-5 ORB fittings (2) ✔ — Use supplied O-ring fittings only
Hose kit(s) — ✔ Select correct length & ends
Steering fluid — ✔ SeaStar/BayStar fluid only
Front-mount cylinder — ✔ Match to engine model
Steering wheel — Optional 3/4" keyed, tapered hub

Maintenance & Safety

  • Quarterly inspection for seepage, abrasions, and play.
  • Keep fluid topped and pristine; replace contaminated fluid.
  • Any sudden change in effort or free-play: stop and diagnose.

Do not use NPT adapters; ORB seals on the O-ring, not the threads.

Downloads & Resources

Installation Manual (PDF) Steering Fluid SDS
Helm mounting template
Mounting template
-5 ORB ports
-5 ORB ports
SeaStar 3-bolt pattern
3-bolt pattern

FAQs

Do I need new hoses?

If your system uses -5 ORB hose ends and the lengths are correct, you can typically reuse. Replace any aged/damaged hoses.

Can I use thread tape on fittings?

No. ORB seals via the O-ring; do not use sealant or tape on ORB threads.

Will tilt add helm depth?

Yes. Ensure behind-dash depth and wire/hose clearance through the tilt arc.

Quick Info

SKU: HH6492-4

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Questions?

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No sales tax outside CA (where applicable). Financing available. Authorized dealer & service center.

International? Email us for shipping options.

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Warranty Information

Seatech Marine Products is an authorized dealer for Dometic that distributes Seastar Products, this part has a 2 Year Limited Warranty from them. Please visit their website for full details: https://www.dometic.com/en-us/outdoor/support/warranty-statements
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