--- product_id: 4601313 title: "Dometic SeaStar Hydraulic Steering Fluid, HA5440H, 1 Gallon" brand: "seastar" price: "AR$424324" currency: ARS in_stock: true reviews_count: 10 category: "Sea Star" url: https://www.desertcart.com.ar/products/4601313-dometic-seastar-hydraulic-steering-fluid-ha5440h-1-gallon store_origin: AR region: Argentina --- # Water emulsification additive Proprietary additive formula Anti-corrosion & anti-rust agents Dometic SeaStar Hydraulic Steering Fluid, HA5440H, 1 Gallon **Brand:** seastar **Price:** AR$424324 **Availability:** ✅ In Stock ## Summary > 🛥️ Navigate with confidence—only the best fluid fuels your SeaStar steering! ## Quick Answers - **What is this?** Dometic SeaStar Hydraulic Steering Fluid, HA5440H, 1 Gallon by seastar - **How much does it cost?** AR$424324 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/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 Protection Formula:** Packed with anti-foaming, anti-rust, and corrosion inhibitors to extend system life and reliability. - • **Seamless System Maintenance:** Compatible with SeaStar’s hydraulic filler kit for clean, efficient bleeding and fluid replacement. - • **Viscosity Stability Under Pressure:** Viscosity stabilizers maintain fluid consistency for smooth, responsive steering in all conditions. - • **Made in the USA with Trusted Quality:** Crafted domestically with rigorous standards, ensuring premium quality and peace of mind. - • **Precision Engineered for Peak Performance:** Validated and matched exclusively for SeaStar hydraulic steering systems to ensure flawless control and safety. ## Overview SeaStar Hydraulic Steering Fluid (HA5440H) is a 1-gallon premium hydraulic oil formulated with a proprietary blend of anti-foaming, anti-rust, antioxidant, and viscosity stabilizing additives. Designed exclusively for SeaStar Solutions hydraulic steering systems, it ensures optimal performance, corrosion protection, and smooth steering response. Made in the USA and backed by a limited warranty, this fluid is essential for maintaining the reliability and safety of your marine steering setup. ## Description HA5440 Size: 1 Gallon Features: -Made in the USA.-1 Quart.-1 Gallon. Review: Great Fluid. - Purchased this product to replace the fluid in my boats Power Purge JR so it has fresh fluid. Great value. Review: Good quality and value - Works perfectly with my steering system ## 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 | #266,710 in Automotive ( See Top 100 in Automotive ) #59 in Power Steering Fluids | | Brand Name | SeaStar | | Container Type | Bottle | | Customer Reviews | 4.7 4.7 out of 5 stars (145) | | 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 | | Recommended Uses For Product | Hydraulic Oil | | UPC | 731957801098 | | Unit Count | 128.0 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) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great Fluid. *by T***D on October 31, 2025* Purchased this product to replace the fluid in my boats Power Purge JR so it has fresh fluid. Great value. ### ⭐⭐⭐⭐⭐ Good quality and value *by J***R on February 21, 2024* Works perfectly with my steering system ### ⭐⭐⭐⭐⭐ Great product *by M***G on October 15, 2022* My steering is like new. ## 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 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.com.ar/products/4601313-dometic-seastar-hydraulic-steering-fluid-ha5440h-1-gallon](https://www.desertcart.com.ar/products/4601313-dometic-seastar-hydraulic-steering-fluid-ha5440h-1-gallon) --- *Product available on Desertcart Argentina* *Store origin: AR* *Last updated: 2026-05-21*