{"product_id":"sierra-18-7776-1-fuel-water-separator-kit-3-8-stainless-steel-21-micron-90-gph-yamaha-outboard-and-marine-gasoline-fuel-systems","title":"Sierra 18-7776-1 3\/8 Inch Fuel Water Separator Filter Kit, Stainless Steel, 21 Micron","description":"\u003cp\u003eThe Sierra 18-7776-1 is a 3\/8 inch (9.5mm) fuel water separator filter kit built with a stainless steel outer housing for durability in a marine engine compartment. It is designed to protect inboard, sterndrive, and outboard fuel injection systems from the damage that emulsified water and contaminants can cause to injectors, carburetors, and fuel pumps. The filter carries a 21 micron rating and removes over 99.8% of emulsified water from gasoline before it reaches the engine, helping prevent hesitation, stalling, and long-term fuel system wear caused by ethanol-blended fuel absorbing moisture.\u003c\/p\u003e\u003cp\u003eRated to flow at 90 GPH, the 18-7776-1 is built to keep pace with higher-demand fuel systems rather than restricting flow under load. The stainless steel construction resists corrosion in the humid, saltwater-exposed environment typical of boat engine bays, making it a durable choice for a component that is replaced as routine maintenance. It installs on 3\/8 inch fuel lines and functions as a genuine Sierra part offered as a direct OEM equivalent, so no separate cross-reference lookup is needed to specify the correct filter for a 3\/8 inch fuel system.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-7776-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Line Size:\u003c\/strong\u003e 3\/8 inch (9.5 millimeters)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMicron Rating:\u003c\/strong\u003e 21 Micron\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlow Rate:\u003c\/strong\u003e 90 GPH\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWater Removal:\u003c\/strong\u003e Removes over 99.8% of emulsified water from gasoline\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVehicle Service Type:\u003c\/strong\u003e Watercraft\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit Count:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 2.16 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat size fuel line does the Sierra 18-7776-1 fit?\u003c\/strong\u003e The 18-7776-1 is sized for 3\/8 inch (9.5mm) fuel line connections.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the micron rating of this filter?\u003c\/strong\u003e This Sierra fuel water separator kit carries a 21 micron filtration rating.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much water can this filter remove from gasoline?\u003c\/strong\u003e It removes over 99.8% of emulsified water from gasoline before it can reach the engine's fuel system.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the maximum flow rate of the 18-7776-1?\u003c\/strong\u003e It is rated to flow at 90 GPH, enough to feed higher-demand fuel injection systems without restricting supply.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the 18-7776-1 housing made from?\u003c\/strong\u003e The housing is stainless steel, chosen for corrosion resistance in a marine engine compartment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-7776-1 compatible with fuel injected engines?\u003c\/strong\u003e Yes, it is built to protect inboard, sterndrive, and outboard fuel injection systems from water and debris contamination.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-7776-1 a genuine Sierra part or an aftermarket copy?\u003c\/strong\u003e It is a genuine Sierra-manufactured fuel water separator kit, offered as a direct OEM equivalent part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-7776-1 fuel water separator kit weigh?\u003c\/strong\u003e The kit weighs 2.16 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many filters come in the 18-7776-1 kit?\u003c\/strong\u003e The 18-7776-1 is sold as a 1-count fuel water separator kit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-7776-1 fit outboard, sterndrive, and inboard engines?\u003c\/strong\u003e Yes, the 3\/8 inch Sierra 18-7776-1 is designed to work across inboard, sterndrive, and outboard fuel systems using a 3\/8 inch fuel line.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I know if I need the 3\/8 inch size instead of another size?\u003c\/strong\u003e Check the diameter of the existing fuel line at the filter connection; the 18-7776-1 is built specifically for 3\/8 inch (9.5mm) line, so a different diameter line would require a different size filter.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this filter help with ethanol-related fuel problems?\u003c\/strong\u003e Yes, by removing over 99.8% of emulsified water from gasoline, the 18-7776-1 helps reduce the moisture-related fuel issues common with ethanol-blended gasoline.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988387868891,"sku":"SIE-18-7776-1","price":88.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/sie-18-7776-1_lg__83279.1558131773.500.750.jpg?v=1785188252","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-7776-1-fuel-water-separator-kit-3-8-stainless-steel-21-micron-90-gph-yamaha-outboard-and-marine-gasoline-fuel-systems","provider":"Good Vibes Marina","version":"1.0","type":"link"}