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SeaStar HH6541-4 Classic Tilt 1.7 Hydraulic Boat Helm Pump

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HH6541-4
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  • SeaStar HH6541-4 Classic Tilt 1.7 Hydraulic Boat Helm Pump
  • SeaStar HH6541-4 Classic Tilt 1.7 Hydraulic Boat Helm Pump
  • SeaStar HH6541-4 Classic Tilt 1.7 Hydraulic Boat Helm Pump
$1,243.99
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Description

SeaStar HH6541-4 Classic Tilt 1.7 Hydraulic Boat Helm Pump

The Dometic SeaStar HH65414 Classic Tilt 1.7 Helm Pump is a front mount hydraulic helm with 1.7 cubic inches of displacement, a 3/4 standard tapered shaft, and a 48° classic tilt range for hydraulic steering systems. It offers smooth, efficient no feedback steering for inboard and outboard applications. Preloaded dual taper bearings ensure minimal excess free play. Shaft seals prevent water ingress. These helms are maintenance-free and fit most styled and formed dashes. Available for use with hydraulic systems only.

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Important Helm Update
Updated -4 Series
New valve technology, more durable check valves, and a revised design.
Direct Replacement
HH6541-3, HH6541 and HH5741
This helm replaces earlier 1.7 classic tilt models and also serves as the current replacement for HH5741.
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Technical Specifications

HH6541-4 is the current 1.7 cubic inch Classic Tilt helm with a compact front-mount footprint, ORB port configuration, and the updated tilt mechanism used on current -4 series pumps.

Displacement
1.7 cu. in.
Relief Setting
1000 PSI
Tilt Range
48° / 5 Positions
Shaft
3/4" Tapered
Dash / mounting footprint Front mount helm with a 4-1/2" dash cutout, 5.16" x 5.3" flange outline, and four 7/16" mounting holes on 4" centers.
Helm orientation The helm may be mounted with the shaft horizontal, vertical, or any angle in between, but the filler port must remain in the uppermost position.
Tilt mechanism Uses the classic tilt mechanism with five positive lock positions and a pre-loaded tapered bearing design for tighter feel and reduced excess free play.
Wheel / shaft hardware Accepts wheels up to 20". Steering wheel shaft nut torque is 150 in-lbs and should not exceed 200 in-lbs.
Ports / fitting style Current helms use ORB-style hose fitting ports. Use SeaStar ORB fittings only - do not install NPT pipe fittings into the helm.
Installation notes Confirm full wheel and dash clearance through all tilt positions, maintain access to the filler port, and inspect hoses and fittings regularly as part of normal steering system service.

Product Specifications

Part Number HH6541-4
Manufacturer Dometic Marine
Product Type Classic tilt hydraulic helm pump
Included Fitting Kit HF6004 - 2x ORB-5 90 degree repositionable elbow fittings
Unit Weight 12.22 lbs
Unit Dimensions 5.60" x 7.50" x 16.60"
Country of Origin Canada
HS Code 8413.60.0040
Warranty 2 Years Limited Warranty
Included in the Box HH6541-4 helm pump, mounting hardware, and HF6004 fitting kit with two ORB-5 90 degree repositionable elbow fittings
Wide Application Range Suitable for most hydraulic steering applications on inboard, sterndrive, and outboard boats up to 50 feet.
Single Outboards up to 60 MPH Common choice for single outboard boats up to about 60 MPH when installed to SeaStar guidelines.
Multiple Station Capable Compatible with multi-station hydraulic steering layouts where the overall system is designed accordingly.

Dimensions and Mounting Diagrams

Classic Tilt Helm Mounting Template

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Mounting the Helm Diagram

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SeaStar HH6541-4 Dimensions

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Downloads and Resources

Hydraulic Helms Installation Manual
Download PDF
Classic Tilt Helm Manual
Download PDF
Marine Steering Selection Guide
Download PDF
SeaStar Steering Catalog
Download PDF
Build Guide (Dometic BOM Tool)
Open Tool
Helm Rebuild Service
View Service

Related Products and Spare Parts

HA5430H SeaStar hydraulic steering fluid
HA5430H
1 quart SeaStar hydraulic steering fluid.
HA5438 helm bottle filler kit
HA5438
Helm bottle filler kit for fluid service.
HP6032 SeaStar and BayStar helm service kit
HP6032
Service kit for SeaStar and BayStar helms.
HF6004 ORB 90 degree elbow fitting kit
HF6004
ORB 90 degree elbow fitting kit used with this helm.
HA5432 non-vent plug for helm pumps
HA5432
Non-vent plug for compatible helm pump applications.
HF6012 ORB-5 male to 1/4 NPT female adapter kit
HF6012
Adapter kit sometimes needed when replacing HH5741 with older third-party fittings.
HA6523 classic tilt replacement kit for hydraulic helm pumps
HA6523
Classic tilt replacement kit for hydraulic helm pumps.
HA5478-4 back mount kit for -4 front mount helms
HA5478-4
Back mount kit for -4 front mount helms.

Frequently Asked Questions

What is the difference between HH6541-3 and HH6541-4?
HH6541-4 is the updated current version. The -4 helm uses revised valve technology, more durable check valves, and an updated fill port design, while keeping the same 1.7 classic tilt helm format.
Does HH6541-4 replace HH5741 and keep the same steering feel?
Yes. HH6541-4 is the current replacement for HH5741 and earlier HH6541 versions. Because it remains a 1.7 cubic inch classic tilt helm, steering feel stays in the same general range, while exact turns lock-to-lock still depend on the cylinder volume in the system.
Does this helm include HF6004 fittings, and when would I need HF6012?
HH6541-4 is supplied with the HF6004 ORB elbow fitting kit. If you are adapting older or third-party fittings that do not match the current ORB connection style, HF6012 may be needed.
Can HH6541-4 be used with an autopilot?
It can be used in hydraulic systems that also include an autopilot, but the autopilot pump and plumbing still need to be sized and installed correctly for the steering cylinder volume and overall system layout.
Should I rebuild an older leaking helm or replace it?
If the old helm has contamination, corrosion, or internal rust, many owners end up replacing or professionally rebuilding it instead of attempting a basic seal refresh. If debris has circulated through the system, inspect and flush the rest of the steering system as well.
Why does air keep coming back into the system after bleeding?
Recurring air usually points to a leak, fitting issue, incorrect plug or fluid setup, or incomplete bleeding. Check the helm fittings, cylinder bleeders, plugs, and hose connections carefully, and make sure only the correct steering fluid is being used.

Questions? We can help.

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Why Buy From Seatech Marine Products?

When you order from Seatech Marine Products, you are buying from a company focused on real-world hydraulic steering applications, technical support, and proper product selection.

No Sales Tax Outside California Orders shipping outside California are not charged sales tax.
Buy Now, Pay Later Financing options are available with PayPal Pay Later and Affirm for qualifying purchases.
Authorized Dealer Seatech Marine Products, Inc. is an authorized dealer, installer and service center for Dometic Marine hydraulic steering products.
100% USA Based Business We are a small 100% USA based operation - we greatly appreciate your business!
SeaStar HH6541-4 Dimensions Diagram
SeaStar HH6541-4 Dimensions Diagram
SeaStar HH6541-4 Classic Tilt Helm Mounting Template
Classic Tilt Helm Mounting Template
SeaStar HH6541-4 Mounting Diagram
Mounting the Helm Diagram
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Warranty Information

Seatech Marine Products, Inc. is an authorized dealer for Dometic Marine who manufactures SeaStar Products. This part has a 2 Year Limited Warranty. You can find Dometic's warranty above in the Downloads and Resources.
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