{"product_id":"sierra-10-micron-fuel-water-separator-filter-for-yamaha-mar-fuelf-il-tr-high-capacity-90-gph-medium-6","title":"Sierra 10-Micron Fuel\/Water Separator Filter for Yamaha MAR-FUELF-IL-TR — High Capacity 90 GPH, Medium (6\")","description":"\u003cp\u003e\u003cstrong\u003eThe Sierra 18-7866 is a high-capacity 10-micron fuel\/water separator built to remove emulsified water and fine particles from gasoline while delivering up to 90 gallons per hour to Yamaha fuel systems.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eDesigned as a direct replacement for Yamaha MAR-FUELF-IL-TR, this Sierra filter combines a fine 10-micron media with high flow capacity and rugged construction to protect sensitive inboard, sterndrive, and outboard fuel injection components. It’s intended for marine applications where water contamination and fine particulate can damage pumps and injectors.\u003c\/p\u003e\n\n\u003ch3\u003eHow effectively does this filter remove water and particles?\u003c\/h3\u003e\n\u003cp\u003eThe 18-7866 uses media engineered to separate emulsified water from gasoline and capture small particles down to 10 microns. Sierra specifies removal of over 99.8% of emulsified water and more than 90% efficiency at 10 microns, giving strong protection for modern fuel systems without restricting flow.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eWater separation: \u0026gt;99.8% emulsified water extraction\u003c\/li\u003e\n  \u003cli\u003eParticle filtration: \u0026gt;90% efficiency at 10 microns\u003c\/li\u003e\n  \u003cli\u003eFlow capacity: rated to 90 GPH to support high-demand engines\u003c\/li\u003e\n  \u003cli\u003eDesigned for gasoline fuel systems used in marine environments\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill the Sierra 18-7866 fit my Yamaha MAR-FUELF-IL-TR application?\u003c\/h3\u003e\n\u003cp\u003eThis unit is made as a direct-replacement size and specification for Yamaha MAR-FUELF-IL-TR applications and uses a universal mount approach for many installations. Confirm physical dimensions and connection type on your engine or fuel rail to ensure compatibility before purchase.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eReplacement for Yamaha MAR-FUELF-IL-TR\u003c\/li\u003e\n  \u003cli\u003eHigh-capacity 6\" (152.4 mm) filter size\u003c\/li\u003e\n  \u003cli\u003eUniversal fit considerations—check fittings and bracket space\u003c\/li\u003e\n  \u003cli\u003eSuitable for inboard, sterndrive, and outboard systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I install and maintain this fuel water separator?\u003c\/h3\u003e\n\u003cp\u003eInstallation is straightforward when you match inlet\/outlet fittings and mounting orientation; follow engine-maker recommendations for bleed and priming procedures. Regular inspection and timely replacement keep flow and separation performance optimal—replace per your service intervals or when water\/contaminant build-up is detected.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eMount on a secure bracket with correct flow direction\u003c\/li\u003e\n  \u003cli\u003ePrime and bleed the fuel system after replacement\u003c\/li\u003e\n  \u003cli\u003eInspect for water or sediment regularly; change when contaminated\u003c\/li\u003e\n  \u003cli\u003eFollow engine manufacturer intervals or seasonal service schedule\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat performance can I expect on high-demand engines?\u003c\/h3\u003e\n\u003cp\u003eWith a 90 GPH rating, this separator supports engines that require substantial fuel flow while maintaining fine filtration and water removal. The high-capacity design balances protective filtration with the flow needed by modern, high-horsepower outboards and sterndrives.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eRated flow: 90 gallons per hour for high-demand use\u003c\/li\u003e\n  \u003cli\u003eBalanced media for minimal pressure drop at rated flow\u003c\/li\u003e\n  \u003cli\u003eProtects fuel pumps and injectors from water and particulates\u003c\/li\u003e\n  \u003cli\u003eEngine-friendly design suitable for marine environments\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Sierra 18-7866 is aimed at boat owners, mechanics, and fleet managers who run Yamaha-equipped inboard, sterndrive, or outboard engines and need reliable water separation and fine-particle filtration without sacrificing flow. It’s appropriate for recreational and commercial vessels that demand consistent fuel cleanliness to protect modern fuel injection systems and sustain engine performance.\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: Is this filter a direct replacement for Yamaha MAR-FUELF-IL-TR?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The Sierra 18-7866 is designed to replace Yamaha MAR-FUELF-IL-TR; verify fittings and space before installing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How often should I replace the 18-7866 separator?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Replace per your engine manufacturer’s schedule or sooner if you detect water, sediment, or reduced fuel flow.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48086812197022,"sku":"B000N9I500","price":33.55,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/sierra-18-7866-front-view.jpg?v=1785906167","url":"https:\/\/northtrailauto.ca\/products\/sierra-10-micron-fuel-water-separator-filter-for-yamaha-mar-fuelf-il-tr-high-capacity-90-gph-medium-6","provider":"North Trail Auto","version":"1.0","type":"link"}