---
product_id: 152445766
title: "SeaStar Solutions HA5430H SeaStar/BayStar Hydraulic Steering Fluid, 1 Quart"
brand: "seastar"
price: "€ 83.59"
currency: EUR
in_stock: true
reviews_count: 8
category: "Sea Star"
url: https://www.desertcart.hr/products/152445766-seastar-solutions-ha5430h-seastar-baystar-hydraulic-steering-fluid-1-quart
store_origin: HR
region: Croatia
---

# Viscosity 14.1-15.1 mm²/s (15W) Corrosion Protection Formula 1 Quart Marine-Grade Fluid SeaStar Solutions HA5430H SeaStar/BayStar Hydraulic Steering Fluid, 1 Quart

**Brand:** seastar
**Price:** € 83.59
**Availability:** ✅ In Stock

## Summary

> 🛥️ Steer Smooth, Sail Confident: The Ultimate Hydraulic Fluid for Marine Pros

## Quick Answers

- **What is this?** SeaStar Solutions HA5430H SeaStar/BayStar Hydraulic Steering Fluid, 1 Quart by seastar
- **How much does it cost?** € 83.59 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/152445766-seastar-solutions-ha5430h-seastar-baystar-hydraulic-steering-fluid-1-quart)

## 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

- • **Convenient 1-Quart Bottle:** Easy-to-handle packaging designed for quick, mess-free refills—never get caught off-guard on the water.
- • **Trusted Industry Standard:** SeaStar Solutions, a leader in marine hydraulics, guarantees quality and reliability you can count on.
- • **Always In Stock, Always Ready:** Keep your vessel mission-ready with fluid that’s readily available and delivered straight to your door.
- • **Marine-Grade Corrosion Defense:** Specially formulated to protect your steering system from rust and wear in harsh saltwater environments.
- • **Precision Viscosity for Smooth Steering:** Optimized 15W viscosity ensures effortless, responsive marine hydraulic steering performance.

## Overview

SeaStar Solutions HA5430H is a premium 1-quart hydraulic steering fluid engineered with a precise 15W viscosity (14.1-15.1 mm²/s) to deliver smooth, reliable steering performance. Its corrosion-inhibiting formula protects marine hydraulic systems from saltwater damage, ensuring longevity and optimal function. Packaged in an easy-to-use bottle and trusted by marine professionals, this fluid is a must-have for maintaining your vessel’s steering integrity.

## Description

Prevent corrosion in your marine hydraulic steering system with the SeaStar Solutions HA5430H Hydraulic Steering Fluid. This high-quality product, available in a 1-quart bottle, is manufactured by SeaStar Solutions, a trusted name in the industry. It is currently in stock and available for purchase at an affordable price. The kinematic viscosity of this steering fluid is 14.1-15.1 @ 40C mm2/s - 15W, making it an ideal choice for your marine hydraulic steering needs. Add this machine lubricant to your cart today and ensure the smooth operation of your marine steering system.

Review: Have to have it - Not much to say, but we have to use this when servicing a seastar system. Its pricey, but no other real option. The bottle came properly packaged and and sealed. I will purchase this again if I need more. Its much easier to have this delivered to your house than to go to the store and pay more. The fluid works as intended. Its quality stuff made specifically for the SeaStar steering system.
Review: works well. - good stuff to have on hand.

## Features

- Container Type: Bottle - Easy-to-handle and store 1 quart of SeaStar's hydraulic steering fluid in this bottle
- Viscosity: 14.1-15.1 mm2/s - 15W - Experience smooth performance with the ideal viscosity for marine hydraulic steering systems
- Item Form: Liquid - This machine lubricant is in a liquid form, ensuring easy pouring and application
- Available: In Stock - Rest assured that this SeaStar Teleflex HA5430H Oil Hydraulic Steering Quart is readily available for your marine steering needs

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07W96Q9F6 |
| Best Sellers Rank | #11,007 in Automotive ( See Top 100 in Automotive ) #16 in Power Steering Fluids |
| Brand | SeaStar |
| Date First Available | August 9, 2019 |
| Item Form | Liquid |
| Item Weight | 1.9 pounds |
| Liquid Volume | 1 Quarts |
| Material | Polytetrafluoroethylene |
| Number of Items | 1 |
| Package Dimensions | 10.28 x 5.04 x 2.48 inches |
| Package Information | Bottle |
| Recommended Uses For Product | Corrosion Inhibitor |
| SAE J300 Viscosity Grade | 15W |
| Specific Uses For Product | Prevent Corrosion |
| UPC | 700761133510 |
| Unit Count | 32.0 Fluid Ounces |
| Viscosity | 14.1-15.1 mm2/s - 15W |

## Product Details

- **Brand:** SeaStar
- **Item Weight:** 0.86 Kilograms
- **Liquid Volume:** 1 Quarts
- **Material:** Polytetrafluoroethylene
- **Package Information:** Bottle

## Images

![SeaStar Solutions HA5430H SeaStar/BayStar Hydraulic Steering Fluid, 1 Quart - Image 1](https://m.media-amazon.com/images/I/61um8qyz7TL.jpg)

## Questions & Answers

**Q: All the picturs i've seen show an orange bottle.  the bottle that just arrived is black. should i be concerned?**
A: No! The manufacture has just changed the color of the bottle after decades of it being orange. It is a little of putting after being so used to the orange bottle. We are unsure at the moment if this has been caused by a shortage of bottles in the supply chain or if it is here to stay. But be assured it is the same product from the manufacture. Same part number and still the best oil to use available.

**Q: Mil spec?**
A: Yes an exact fit

## Customer Reviews

### ⭐⭐⭐⭐⭐ Have to have it
*by S***0 on December 29, 2025*

Not much to say, but we have to use this when servicing a seastar system. Its pricey, but no other real option. The bottle came properly packaged and and sealed. I will purchase this again if I need more. Its much easier to have this delivered to your house than to go to the store and pay more. The fluid works as intended. Its quality stuff made specifically for the SeaStar steering system.

### ⭐⭐⭐⭐⭐ works well.
*by A***T on January 3, 2026*

good stuff to have on hand.

### ⭐⭐⭐⭐⭐ Oil worked.
*by C***O on September 3, 2025*

Item received looks nothing like the picture. But I guess it worked. Haven’t had any stereo g problems as of yet. But what I received looked like a cheap knock off of the original fluid. Looked like a generic bottle with seastar printed on it.

## Frequently Bought Together

- SeaStar Solutions HA5430H SeaStar/BayStar Hydraulic Steering Fluid, 1 Quart
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- HC5345 Seal Kit For SeaStar Hydraulic Steering Cylinder Seal Kit with Pin Wrench HS5157 compatible with HC5340, HC5341, HC5342, HC5343, HC5344, HC5345,HC6750, HC6751

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-02-26*