{"product_id":"ghmarine-water-pump-impeller-kit-for-mercury-marine-30-125-hp-sierra-18-3688","title":"GHmarine Water Pump Impeller Kit for Mercury Marine 30-125 HP | Sierra 18-3688","description":"\u003ch2\u003eGHmarine Water Pump Impeller Kit for Mercury Marine Outboards\u003c\/h2\u003e\n\u003cp\u003eDesigned for practical maintenance on Mercury Marine 2-stroke and 4-stroke outboards, the GHmarine Water Pump Impeller Kit covers a broad range of engines from 30 HP to 125 HP. This is a comprehensive, all-in-one replacement option that aims to restore reliable cooling performance without the guesswork. The kit is built to align with factory references and is suitable for both seasoned technicians and DIY boaters who value dependable gear during seasonal service or on-the-water troubleshooting.\u003c\/p\u003e\n\u003cp\u003eThe kit is thoughtfully assembled to support a smooth replacement process. It brings together a robust combination of components that work in concert to keep your cooling system working as intended. While no single kit can guarantee results in every scenario, many users find that using a complete impeller kit with genuine-compatible parts helps maintain steady water flow and helps reduce the risk of overheating during demanding conditions.\u003c\/p\u003e\n\u003ch3\u003eWhat’s Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eWater Pump Impeller\u003c\/li\u003e\n  \u003cli\u003eWear Plate (stainless)\u003c\/li\u003e\n  \u003cli\u003eDrive Key\u003c\/li\u003e\n  \u003cli\u003ePump Cover\u003c\/li\u003e\n  \u003cli\u003e4 x Screws\u003c\/li\u003e\n  \u003cli\u003eHousing\u003c\/li\u003e\n  \u003cli\u003e2 x Seals\u003c\/li\u003e\n  \u003cli\u003eGaskets\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatibility and References\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eMercury Marine 2-stroke and 4-stroke outboards from 30 HP to 125 HP\u003c\/li\u003e\n  \u003cli\u003eMercury part references: 46-8M0113799, 43024A4, 43024A5, 43024A6, 43024A7, 43024A09, 43026T9\u003c\/li\u003e\n  \u003cli\u003eSierra 18-3688 compatibility\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eMaterials and Durability\u003c\/h3\u003e\n\u003cp\u003eThe kit combines a stainless wear plate with nylon PA66, plus a non-asbestos tube, neoprene impeller, and gaskets. These materials are selected to withstand marine conditions and provide a durable, long-lasting replacement without compromising fit or function.\u003c\/p\u003e\n\u003ch3\u003eKey Benefits and Real-Life Uses\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eComprehensive replacement set designed for Mercury 2-stroke and 4-stroke outboards (30–125 HP).\u003c\/li\u003e\n  \u003cli\u003eIncludes essential components to simplify service and minimize downtime.\u003c\/li\u003e\n  \u003cli\u003eDurable materials aim to maintain reliable cooling performance in varied water conditions.\u003c\/li\u003e\n  \u003cli\u003eSuitable for mid-season maintenance, winterization prep, and on-site service checks while on the boat or trailer.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation Considerations\u003c\/h3\u003e\n\u003cp\u003eFollow standard installation practices for seals and gaskets, ensuring proper alignment and secure mounting. Verify water passages after installation to confirm consistent flow and engine protection. This kit is intended to support straightforward DIY maintenance or professional service workflows.\u003c\/p\u003e\n\u003ch3\u003eWhy Choose GHmarine\u003c\/h3\u003e\n\u003cp\u003eGHmarine offers a practical, all-in-one maintenance option for Mercury outboards. By combining widely compatible references with durable materials, the kit is designed to help you maintain cooling system performance with confidence. Use it as part of a regular maintenance routine to support reliable operation across seasons, while recognizing that results can vary with engine model, usage, and conditions.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Which engines is this kit compatible with?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Designed for Mercury Marine 2- and 4-stroke outboards from 30 HP to 125 HP, including Sierra 18-3688 references.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What does the kit include?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Impeller, wear plate, drive key, pump housing cover, seals, gaskets, screws, and related components for replacement.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"GHmarine","offers":[{"title":"Default Title","offer_id":42464355123285,"sku":"B0CDC1N4JN","price":125.13,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0632\/3270\/4597\/files\/ghmarine-water-pump-impeller-kit-contents-mercury.jpg?v=1777977872","url":"https:\/\/plentytorque.co.uk\/products\/ghmarine-water-pump-impeller-kit-for-mercury-marine-30-125-hp-sierra-18-3688","provider":"PlentyTorque","version":"1.0","type":"link"}