--- product_id: 119646194 title: "Quicksilver 858078Q01 Hydraulic Helm Steering Fluid - 32 Oz. Bottle" brand: "quicksilver" price: "€ 61.33" currency: EUR in_stock: true reviews_count: 8 category: "Quicksilver" url: https://www.desertcart.hr/products/119646194-quicksilver-858078q01-hydraulic-helm-steering-fluid-32-oz-bottle store_origin: HR region: Croatia --- # 32 oz. pure hydraulic fluid Meets Mil Spec H5606G OEM spec for Mercury Marine Quicksilver 858078Q01 Hydraulic Helm Steering Fluid - 32 Oz. Bottle **Brand:** quicksilver **Price:** € 61.33 **Availability:** ✅ In Stock ## Summary > 🛥️ Steer with confidence — the official fluid of marine pros! ## Quick Answers - **What is this?** Quicksilver 858078Q01 Hydraulic Helm Steering Fluid - 32 Oz. Bottle by quicksilver - **How much does it cost?** € 61.33 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/119646194-quicksilver-858078q01-hydraulic-helm-steering-fluid-32-oz-bottle) ## Best For - quicksilver enthusiasts ## Why This Product - Trusted quicksilver brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Certified Mil Spec Performance:** Meets rigorous Mil Spec H5606G standards for unmatched reliability under pressure. - • **Pure Hydraulic Fluid Excellence:** Ultra-pure formula guarantees smooth, impurity-free steering response every time. - • **Trusted by Professionals for 65+ Years:** Quicksilver’s legacy of quality means peace of mind on every voyage. - • **Precision Engineered for Marine Mastery:** Formulated to meet Mercury Marine OEM specs, ensuring flawless compatibility with your outboard or sterndrive systems. - • **Universal Compatibility with Non-Power Systems:** Perfect for MerCruiser compact and SeaStar® bolt-on hydraulic helm steering systems. ## Overview Quicksilver 858078Q01 Hydraulic Helm Steering Fluid is a 32 oz. bottle of premium, Mil Spec H5606G certified fluid designed specifically for non-power hydraulic steering systems. Engineered to meet Mercury Marine OEM standards, it ensures optimal performance and longevity for MerCruiser and SeaStar® helm systems. Trusted for over 65 years, this ultra-pure fluid delivers smooth, reliable steering in demanding marine environments. ## Description Hydraulic Helm Steering Fluid 858078Q01 is for use in non‑power hydraulic steering systems such as, MerCruiser compact hydraulic helm steering systems and bolt‑on steering systems such as SeaStar® by Teleflex®, Inc. See your owner's manual for requirements and specifications. The Quicksilver brand is the leader in delivering uncompromising engine oils, parts and accessories to the marine industry for over 65 years. Quicksilver is the premier supplier of Mercury Marine Original Equipment replacement engine parts, oils, and accessories, but also works to serve all Original Equipment brands in the marine and powersports industries. It has earned a loyal following by providing the highest quality products that are tested through some of the most rigorous environments and testing procedures. No aftermarket company comes close to the level of research and design as Quicksilver; buying Quicksilver is buying performance, protection and peace of mind. Review: My Handy Man - This was for my husbands was a good price on desertcart. We just changed his boat stealing over to hydraulic steering. Review: Dependable quality - You just can't beat the quality of name brand hydraulic fluid. The tolerances of hydraulic pistons cannot accept any impurities in the fluid that makes them work and this name brand fluid is always pure. ## Features - For use in non‑power hydraulic steering systems - Meets Mil Spec H5606G - Produced to meet Mercury Marine original equipment manufacturer specifications to maximize the performance of your Mercury and Mariner outboard or MerCruiser sterndrive ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B002IV4LP4 | | Best Sellers Rank | #12,651 in Automotive ( See Top 100 in Automotive ) #16 in Power Steering Fluids | | Brand | Quicksilver | | Brand Name | Quicksilver | | Container Type | Bottle | | Customer Reviews | 4.8 out of 5 stars 513 Reviews | | Global Trade Identification Number | 00745061039490 | | Included Components | 1 quart bottle of Hydraulic Steering Fluid | | Item Form | Liquid | | Item Weight | 16 ounces | | Liquid Volume | 946 Milliliters | | Manufacturer | Quicksilver | | Material | Various Materials | | Model Number | 858078Q01 | | Number of Items | 1 | | Package Information | Bottle | | Part Number | 858078Q01 | | Recommended Uses For Product | Hydraulic Oil | | Specific Uses For Product | Hydraulic steering systems, Marine steering systems | | UPC | 745061039490 | | Unit Count | 32.0 Fluid Ounces | | Viscosity | 12.5 to 16.3 cSt at 100°C (212°F) | ## Product Details - **Brand:** Quicksilver - **Item Weight:** 16 ounces - **Liquid Volume:** 946 Milliliters - **Material:** Various Materials - **Package Information:** Bottle ## Images ![Quicksilver 858078Q01 Hydraulic Helm Steering Fluid - 32 Oz. Bottle - Image 1](https://m.media-amazon.com/images/I/71tiycLb2tL.jpg) ![Quicksilver 858078Q01 Hydraulic Helm Steering Fluid - 32 Oz. Bottle - Image 2](https://m.media-amazon.com/images/I/71eB6y7Ti8L.jpg) ![Quicksilver 858078Q01 Hydraulic Helm Steering Fluid - 32 Oz. Bottle - Image 3](https://m.media-amazon.com/images/I/71f2hJdIOtL.jpg) ![Quicksilver 858078Q01 Hydraulic Helm Steering Fluid - 32 Oz. Bottle - Image 4](https://m.media-amazon.com/images/I/71a--m-ruoL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ My Handy Man *by P***T on January 21, 2026* This was for my husbands was a good price on Amazon. We just changed his boat stealing over to hydraulic steering. ### ⭐⭐⭐⭐⭐ Dependable quality *by G***C on July 12, 2025* You just can't beat the quality of name brand hydraulic fluid. The tolerances of hydraulic pistons cannot accept any impurities in the fluid that makes them work and this name brand fluid is always pure. ### ⭐⭐⭐⭐⭐ Only brand we buy! *by C***E on November 2, 2025* Husband uses for his boat. This is the only brand he buys. We’ve had our boat for 17 years, and this product has helped maintain it all these years. ## Frequently Bought Together - Quicksilver 858078Q01 Hydraulic Helm Steering Fluid - 32 Oz. Bottle - Quicksilver 858075Q01 Power Trim and Steering Fluid - 32 Oz. Bottle --- ## 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.hr/products/119646194-quicksilver-858078q01-hydraulic-helm-steering-fluid-32-oz-bottle](https://www.desertcart.hr/products/119646194-quicksilver-858078q01-hydraulic-helm-steering-fluid-32-oz-bottle) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-07-07*