{"product_id":"mercury-upper-housing-fits-mercury-mariner-outboards-f8-9-9-hp-fourstroke-bigfoot-f15-20-fourstroke-outboards-9-9-15-18-hp-2-cycle-outboards-46-803750a05","title":"Mercury – Quicksilver Upper Water Pump Housing | Reinforced Nylon Construction | 803750A05","description":"\u003cp data-start=\"0\" data-end=\"96\"\u003e\u003cstrong data-start=\"0\" data-end=\"94\"\u003eMercury – Quicksilver Upper Water Pump Housing | Reinforced Nylon Construction | 803750A05\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"98\" data-end=\"101\"\u003e\n\u003ch3 data-start=\"103\" data-end=\"121\"\u003e\u003cstrong data-start=\"107\" data-end=\"119\"\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"122\" data-end=\"701\"\u003eA strong, leak-free cooling system starts with quality components. The \u003cstrong data-start=\"193\" data-end=\"258\"\u003eMercury Marine 803750A05 Quicksilver Upper Water Pump Housing\u003c\/strong\u003e is built from \u003cstrong data-start=\"273\" data-end=\"293\"\u003ereinforced nylon\u003c\/strong\u003e to handle heat, pressure, and long hours on the water without warping or cracking. Designed for \u003cstrong data-start=\"390\" data-end=\"441\"\u003eMercury and Mariner F8\/9.9HP FourStroke BigFoot\u003c\/strong\u003e, \u003cstrong data-start=\"443\" data-end=\"466\"\u003eF15\/20HP FourStroke\u003c\/strong\u003e, and select \u003cstrong data-start=\"479\" data-end=\"503\"\u003e9.9HP–18HP TwoStroke\u003c\/strong\u003e outboards, this OEM housing ensures consistent water flow and a reliable seal within your cooling system. It’s the right part to keep your outboard running cool and protected season after season.\u003c\/p\u003e\n\u003chr data-start=\"703\" data-end=\"706\"\u003e\n\u003ch3 data-start=\"708\" data-end=\"730\"\u003e\u003cstrong data-start=\"712\" data-end=\"728\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"733\" data-end=\"855\"\u003e\n\u003cstrong data-start=\"733\" data-end=\"745\"\u003ePurpose:\u003c\/strong\u003e Serves as the upper section of your engine’s water pump, maintaining proper water flow and system pressure.\u003c\/li\u003e\n\u003cli data-start=\"858\" data-end=\"983\"\u003e\n\u003cstrong data-start=\"858\" data-end=\"875\"\u003eConstruction:\u003c\/strong\u003e Made from \u003cstrong data-start=\"886\" data-end=\"906\"\u003ereinforced nylon\u003c\/strong\u003e, providing strength, heat resistance, and durability in marine conditions.\u003c\/li\u003e\n\u003cli data-start=\"986\" data-end=\"1068\"\u003e\n\u003cstrong data-start=\"986\" data-end=\"997\"\u003eDesign:\u003c\/strong\u003e Built to maintain a tight seal, ensuring proper cooling performance.\u003c\/li\u003e\n\u003cli data-start=\"1071\" data-end=\"1164\"\u003e\n\u003cstrong data-start=\"1071\" data-end=\"1087\"\u003ePerformance:\u003c\/strong\u003e Resists wear and deformation caused by heat, vibration, and salt exposure.\u003c\/li\u003e\n\u003cli data-start=\"1167\" data-end=\"1256\"\u003e\n\u003cstrong data-start=\"1167\" data-end=\"1183\"\u003eEase of Use:\u003c\/strong\u003e OEM-quality fit for straightforward installation using standard tools.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1258\" data-end=\"1261\"\u003e\n\u003ch3 data-start=\"1263\" data-end=\"1300\"\u003e\u003cstrong data-start=\"1267\" data-end=\"1298\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"1303\" data-end=\"1372\"\u003e\n\u003cstrong data-start=\"1303\" data-end=\"1353\"\u003eMercury\/Mariner F8 \u0026amp; F9.9HP FourStroke BigFoot\u003c\/strong\u003e (2005 and newer)\u003c\/li\u003e\n\u003cli data-start=\"1375\" data-end=\"1455\"\u003e\n\u003cstrong data-start=\"1375\" data-end=\"1417\"\u003eMercury\/Mariner F15 \u0026amp; F20HP FourStroke\u003c\/strong\u003e (serial number 0R235168 and higher)\u003c\/li\u003e\n\u003cli data-start=\"1458\" data-end=\"1531\"\u003e\n\u003cstrong data-start=\"1458\" data-end=\"1493\"\u003eMercury\/Mariner 9.9HP TwoStroke\u003c\/strong\u003e (serial number 0N059858 and higher)\u003c\/li\u003e\n\u003cli data-start=\"1534\" data-end=\"1613\"\u003e\n\u003cstrong data-start=\"1534\" data-end=\"1575\"\u003eMercury\/Mariner 15HP \u0026amp; 18HP TwoStroke\u003c\/strong\u003e (serial number 0N001590 and higher)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1615\" data-end=\"1618\"\u003e\n\u003ch3 data-start=\"1620\" data-end=\"1663\"\u003e\u003cstrong data-start=\"1624\" data-end=\"1661\"\u003ePerformance \u0026amp; Real-World Benefits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1664\" data-end=\"2025\"\u003eThe \u003cstrong data-start=\"1668\" data-end=\"1706\"\u003e803750A05 upper water pump housing\u003c\/strong\u003e plays a crucial role in maintaining steady cooling water circulation through your engine. Over time, housings can wear or deform, leading to poor water flow or leaks that compromise cooling efficiency. Replacing it with a genuine Quicksilver housing restores proper water pressure and ensures the pump runs smoothly.\u003c\/p\u003e\n\u003cp data-start=\"2027\" data-end=\"2291\"\u003eThe reinforced nylon construction offers the best mix of strength and flexibility — it’s lightweight, corrosion-resistant, and built to handle marine heat cycles without cracking. With an OEM fit, you can expect a clean installation and long-lasting reliability.\u003c\/p\u003e\n\u003chr data-start=\"2293\" data-end=\"2296\"\u003e\n\u003ch3 data-start=\"2298\" data-end=\"2330\"\u003e\u003cstrong data-start=\"2302\" data-end=\"2328\"\u003eWhy Choose Mercury OEM\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2331\" data-end=\"2598\"\u003eThe \u003cstrong data-start=\"2335\" data-end=\"2360\"\u003eQuicksilver 803750A05\u003c\/strong\u003e is a \u003cstrong data-start=\"2366\" data-end=\"2402\"\u003egenuine Mercury Marine component\u003c\/strong\u003e, built to the same standards used in factory assemblies. While aftermarket housings might claim compatibility, they often use cheaper plastics that can warp, causing leaks or uneven water flow.\u003c\/p\u003e\n\u003cp data-start=\"2600\" data-end=\"2811\"\u003eMercury’s OEM design is tested under real marine conditions for precision fit, strength, and consistent performance. When it comes to your cooling system, the right fit matters — and this one is built to last.\u003c\/p\u003e\n\u003chr data-start=\"2813\" data-end=\"2816\"\u003e\n\u003ch3 data-start=\"2818\" data-end=\"2831\"\u003e\u003cstrong data-start=\"2822\" data-end=\"2829\"\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2833\" data-end=\"2943\"\u003e\u003cstrong data-start=\"2833\" data-end=\"2870\"\u003eQ1: What’s included in this part?\u003c\/strong\u003e\u003cbr data-start=\"2870\" data-end=\"2873\"\u003eIt includes the \u003cstrong data-start=\"2889\" data-end=\"2917\"\u003eupper water pump housing\u003c\/strong\u003e ready for installation.\u003c\/p\u003e\n\u003cp data-start=\"2945\" data-end=\"3082\"\u003e\u003cstrong data-start=\"2945\" data-end=\"2983\"\u003eQ2: Why replace the upper housing?\u003c\/strong\u003e\u003cbr data-start=\"2983\" data-end=\"2986\"\u003eCracked or worn housings can cause water leaks or uneven cooling flow, leading to overheating.\u003c\/p\u003e\n\u003cp data-start=\"3084\" data-end=\"3221\"\u003e\u003cstrong data-start=\"3084\" data-end=\"3122\"\u003eQ3: What material is it made from?\u003c\/strong\u003e\u003cbr data-start=\"3122\" data-end=\"3125\"\u003eIt’s constructed from \u003cstrong data-start=\"3147\" data-end=\"3167\"\u003ereinforced nylon\u003c\/strong\u003e for strength, durability, and corrosion resistance.\u003c\/p\u003e\n\u003cp data-start=\"3223\" data-end=\"3338\"\u003e\u003cstrong data-start=\"3223\" data-end=\"3258\"\u003eQ4: Is it difficult to install?\u003c\/strong\u003e\u003cbr data-start=\"3258\" data-end=\"3261\"\u003eNo — it’s a \u003cstrong data-start=\"3273\" data-end=\"3296\"\u003edirect-fit OEM part\u003c\/strong\u003e that installs easily using basic tools.\u003c\/p\u003e\n\u003cp data-start=\"3340\" data-end=\"3516\"\u003e\u003cstrong data-start=\"3340\" data-end=\"3387\"\u003eQ5: Why go with OEM instead of aftermarket?\u003c\/strong\u003e\u003cbr data-start=\"3387\" data-end=\"3390\"\u003eOEM components ensure \u003cstrong data-start=\"3412\" data-end=\"3476\"\u003eexact fitment, long service life, and dependable performance\u003c\/strong\u003e, something generic parts can’t match.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46932438581539,"sku":"46-803750A05","price":48.84,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/803750A05_Main.jpg?v=1760631176","url":"https:\/\/partsvu.com\/en-ca\/products\/mercury-upper-housing-fits-mercury-mariner-outboards-f8-9-9-hp-fourstroke-bigfoot-f15-20-fourstroke-outboards-9-9-15-18-hp-2-cycle-outboards-46-803750a05","provider":"PartsVu","version":"1.0","type":"link"}