{"product_id":"mercury-mercruiser-fuel-filter-fits-mercruiser-1-6l-vazer-3-0l-mpi-ec-engines-35-866594k01","title":"Mercury – Water-Separating Fuel Filter | Fuel System Protection | Marine Coated Steel | 866594K01","description":"\u003ch3\u003e\u003cspan data-preserver-spaces=\"true\"\u003eMercury – \u003cstrong\u003eWater-Separating\u003c\/strong\u003e Fuel Filter | Fuel System Protection | Marine Coated Steel | 866594K01\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch2\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eOverview\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eNothing spoils a perfect day on the water like contaminated fuel. Even when you purchase from reputable marinas, water and debris can still make their way into your tank. This is where the Mercury Marine part, number 866594K01, comes into play. This filter works quietly to protect your engine every time you turn the key. It keeps water out of the fuel system, safeguards the injectors from damage, and helps your engine run smoothly and steadily for those long outings you look forward to all week. When you rely on your boat as many of us do, having a reliable water separator makes all the difference.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan data-preserver-spaces=\"true\"\u003eKey Features\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eTen-micron element removes water and fine fuel contaminants.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eInternal epoxy coating protects against corrosion.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003ePainted exterior resists rust and moisture exposure.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eDesigned specifically for gasoline fuel.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eBuilt to Mercury Marine OEM filtration standards.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan data-preserver-spaces=\"true\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan data-preserver-spaces=\"true\"\u003eFits \u003c\/span\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eMerCruiser 1.6L Vazer\u003c\/span\u003e\u003c\/strong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e and \u003c\/span\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e3.0L MPI EC\u003c\/span\u003e\u003c\/strong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e sterndrive engines.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eCompatible with runabouts, sport boats, tow boats, and smaller cruisers.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eWorks in freshwater and saltwater environments.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eIdeal for boats exposed to varying fuel quality.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan data-preserver-spaces=\"true\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eThis filter makes a noticeable difference in how reliably your engine runs. \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eBy capturing water before it reaches the fuel system, it protects injectors and prevents corrosion inside sensitive components. The engine idles smoother, starts more consistently, and maintains strong performance even when the conditions aren’t perfect.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eThe ten-micron element strikes the right balance — it is fine enough to trap damaging contaminants, but open enough to maintain proper flow under high demand. The internal epoxy coating is a thoughtful touch, reducing the risk of internal rust flaking into the fuel system. You can tell the filter was designed specifically for marine use, not repurposed from an automotive part.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan data-preserver-spaces=\"true\"\u003eWhy Buy OEM\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eW\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003ehen it comes to fuel filtration, choosing generic options can have serious consequences. Mercury designs its water-separating filters to withstand marine moisture, fuel vibrations, and long-term exposure to harsh conditions. This attention to detail results in greater reliability, which translates to cleaner injectors, smoother throttle response, and fewer issues overall. I\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003ef you want to ensure consistent performance and peace of mind, opting for OEM filters is the best choice.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan data-preserver-spaces=\"true\"\u003eFAQ\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ1: What engines does this filter support?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e It fits MerCruiser 1.6L Vazer and 3.0L MPI EC engines.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ2: What makes OEM better for water-separating filters?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e More effective water removal, stronger materials, and corrosion-resistant construction.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ3: How do I confirm it’s the correct filter?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Match your engine model and confirm it uses a ten-micron Mercury filter.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ4: Is it good for saltwater running?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Absolutely — it’s designed to withstand high humidity and corrosion.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ5: Is installation straightforward?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Yes, with a standard filter wrench and basic fuel-system safety practices.\u003c\/span\u003e\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":45626541211939,"sku":"35-866594K01","price":19.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/866594k01_04.jpg?v=1761309525","url":"https:\/\/partsvu.com\/en-au\/products\/mercury-mercruiser-fuel-filter-fits-mercruiser-1-6l-vazer-3-0l-mpi-ec-engines-35-866594k01","provider":"PartsVu","version":"1.0","type":"link"}