---
product_id: 4601313
title: "Dometic SeaStar Hydraulic Steering Fluid, HA5440H, 1 Gallon"
brand: "seastar"
price: "B/.393"
currency: PAB
in_stock: true
category: "Sea Star"
url: https://www.desertcart.com.pa/products/4601313-dometic-seastar-hydraulic-steering-fluid-ha5440h-1-gallon
store_origin: PA
region: Panama
---

# Water emulsification additive Proprietary additive package Anti-corrosion & anti-wear agents Dometic SeaStar Hydraulic Steering Fluid, HA5440H, 1 Gallon

**Brand:** seastar
**Price:** B/.393
**Availability:** ✅ In Stock

## Summary

> 🛥️ Steer with confidence—only the best fluid fuels your SeaStar system!

## Quick Answers

- **What is this?** Dometic SeaStar Hydraulic Steering Fluid, HA5440H, 1 Gallon by seastar
- **How much does it cost?** B/.393 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.pa](https://www.desertcart.com.pa/products/4601313-dometic-seastar-hydraulic-steering-fluid-ha5440h-1-gallon)

## Best For

- seastar enthusiasts

## Why This Product

- Trusted seastar brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Advanced Additive Formula:** Includes anti-foaming, anti-rusting, antioxidants, and viscosity stabilizers for long-lasting fluid integrity.
- • **Corrosion & Wear Protection:** Built-in corrosion inhibitors and wear additives extend the life of your steering components.
- • **Water Emulsification Technology:** Prevents water damage and maintains fluid performance even in challenging marine environments.
- • **Made in the USA with Trusted Quality:** Backed by a limited warranty and 4.7-star rating from 145+ satisfied professionals.
- • **Precision Engineered for SeaStar Systems:** Validated and performance matched for optimal hydraulic steering safety and efficiency.

## Overview

SeaStar Hydraulic Steering Fluid HA5440H is a 1-gallon premium hydraulic oil engineered specifically for SeaStar Solutions steering systems. Featuring a proprietary additive package that combats foaming, rust, oxidation, and wear, it ensures peak performance and longevity. This USA-made fluid is performance validated and recommended exclusively for SeaStar hydraulic steering, delivering reliable, corrosion-resistant steering control in marine environments.

## Description

HA5440 Size: 1 Gallon Features: -Made in the USA.-1 Quart.-1 Gallon.

## Features

- SeaStar Hydraulic Steering Fluid is engineered with a proprietary additive package which contains anti-foaming and anti-rusting agents, anti-oxidants, viscosity stabilizers, corrosion inhibitors, wear additives and a water emulsification additive
- SeaStar Hydraulic Steering Fluid is the ONLY steering fluid which is Validated and Performance Matched to ensure the optimum performance and safety of SeaStar Solutions Hydraulic Steering Systems
- NOTE: There is no difference in the formulation of HA5440 and HA5440H. This is a part number change ONLY and does not affect anything else
- SeaStar Solutions offers a hydraulic filler kit (part # HA5458) which allows for a clean bleed of a hydraulic steering system when used properly
- Due to recent upgrades in SeaStar Solutions' Steering System components, SeaStar Solutions recommends using ONLY SeaStar Steering Fluid in their hydraulic steering systems

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000FQ7NOK |
| Best Sellers Rank | #261,928 in Automotive ( See Top 100 in Automotive ) #57 in Power Steering Fluids |
| Brand | SeaStar |
| Brand Name | SeaStar |
| Container Type | Bottle |
| Customer Reviews | 4.7 out of 5 stars 144 Reviews |
| Global Trade Identification Number | 00731957801098 |
| Included Components | SeaStar Hydraulic Oil, 4 Liter - 1 Gallon |
| Item Form | Liquid |
| Item Type Name | SeaStar Hydraulic Oil, 4 Liter - 1 Gallon |
| Item Weight | 3.6 pounds |
| Liquid Volume | 1 gallons |
| Manufacturer | SEASTAR SOLUTIONS |
| Model Number | HA5440H |
| Number of Items | 1 |
| Number of Packs | 1 |
| Package Information | Bottle |
| Part Number | HA5440H |
| Recommended Uses For Product | Hydraulic Oil |
| Specific Uses For Product | SeaStar/BayStar Hydraulic Steering Systems |
| UPC | 731957801098 |
| Unit Count | 128 Fluid Ounces |
| Warranty Description | limited warranty |

## Product Details

- **Brand:** SeaStar
- **Item Weight:** 3.6 pounds
- **Liquid Volume:** 1 gallons
- **Package Information:** Bottle
- **Recommended Uses For Product:** Hydraulic Oil

## Images

![Dometic SeaStar Hydraulic Steering Fluid, HA5440H, 1 Gallon - Image 1](https://m.media-amazon.com/images/I/71Pjmas15vL.jpg)
![Dometic SeaStar Hydraulic Steering Fluid, HA5440H, 1 Gallon - Image 2](https://m.media-amazon.com/images/I/61qOohmmEgL.jpg)

## Frequently Bought Together

- Dometic SeaStar Hydraulic Steering Fluid, HA5440H, 1 Gallon
- HC5345 Seal Kit For SeaStar Hydraulic Steering Cylinder Seal Kit with Pin Wrench HS5157 compatible with HC5340, HC5341, HC5342, HC5343, HC5344, HC5345,HC6750, HC6751
- Marine Tech Tools Bleed Tube, Seastar Hydraulic Steering Bleed Kit, Fits Seastar Hydraulic Cylinders, Seastar Hydraulic Steering Fluid Bleeder Kit, Marine Tool Kit for Boats

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**Shop now:** [https://www.desertcart.com.pa/products/4601313-dometic-seastar-hydraulic-steering-fluid-ha5440h-1-gallon](https://www.desertcart.com.pa/products/4601313-dometic-seastar-hydraulic-steering-fluid-ha5440h-1-gallon)

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*Product available on Desertcart Panama*
*Store origin: PA*
*Last updated: 2026-11-14*