{"product_id":"sierra-18-7784-marine-fuel-filter-replaces-mercury-35-803897q1-fits-mercruiser-2-5l-3-0l-3-7l-3-8l-4-3l-stern-drive","title":"Sierra Fuel Filter 18-7784, Replaces 35-803897Q1 \/ 35-11004A1, for Mercruiser MCM 120\/2.5L, 140\/3.0L, 3.7L, 3.8L \u0026 4.3L Engines","description":"\u003cp\u003eThe Sierra 18-7784 is a marine fuel filter engineered for Mercruiser stern drive engines, built to trap contaminants before they reach the carburetor or fuel injection system and protect the engine from debris-related damage. It carries a 20 micron rating, filtering fine particulate from the fuel stream while maintaining steady flow to the engine. The filter's outer body is stainless steel, chosen for its resistance to corrosion in the harsh marine environment where constant exposure to moisture, salt air, and fuel vapors quickly degrades lesser materials.\u003c\/p\u003e\u003cp\u003eThis filter is designed to fit Mercruiser MCM 120\/2.5L, 140\/3.0L\/LX, 3.7L, 3.8L, and 4.3L engines. Sierra manufactures this part to meet or exceed the specifications of the original equipment it replaces, and it is built as a direct equivalent for the OEM Mercury Marine part numbers it cross-references. As with all Sierra marine parts, it is produced to stand up to continuous duty in a boat's fuel system rather than an automotive one, where vibration, humidity, and fuel formulation differ from typical land use.\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 18-7784\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Marine Fuel Filter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMicron Rating:\u003c\/strong\u003e 20 microns\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOuter Material:\u003c\/strong\u003e Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVehicle Service Type:\u003c\/strong\u003e Boat\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.06 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit Count:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Equivalent Part Number:\u003c\/strong\u003e 35-803897Q1, 35-11004A1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282106126\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMercruiser MCM 120\/2.5L\u003c\/li\u003e\n\u003cli\u003eMercruiser MCM 140\/3.0L\/LX\u003c\/li\u003e\n\u003cli\u003eMercruiser 3.7L\u003c\/li\u003e\n\u003cli\u003eMercruiser 3.8L\u003c\/li\u003e\n\u003cli\u003eMercruiser 4.3L\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e35-803897Q1\u003c\/li\u003e\n\u003cli\u003e35-11004A1 (Mercury Marine)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-7784 fuel filter fit?\u003c\/strong\u003e The Sierra 18-7784 is designed for Mercruiser MCM 120\/2.5L, 140\/3.0L\/LX, 3.7L, 3.8L, and 4.3L engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the micron rating of this fuel filter?\u003c\/strong\u003e 20 microns is the filtration rating for the Sierra 18-7784 marine fuel filter.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part numbers does the 18-7784 replace?\u003c\/strong\u003e It cross-references to Mercury Marine OEM part numbers 35-803897Q1 and 35-11004A1.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-7784 a genuine Mercury Marine part or aftermarket?\u003c\/strong\u003e The 18-7784 is a Sierra-manufactured replacement part, built to meet or exceed the specifications of the original Mercury Marine equipment it replaces rather than being a Mercury Marine branded part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the fuel filter weigh?\u003c\/strong\u003e The Sierra 18-7784 weighs 0.06 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the filter housing made of?\u003c\/strong\u003e Stainless steel forms the outer body of the Sierra 18-7784, giving it corrosion resistance for marine use.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many filters come in one package?\u003c\/strong\u003e One Sierra 18-7784 fuel filter is included per unit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan this filter be used in a car or automotive fuel system?\u003c\/strong\u003e No, the Sierra 18-7784 is built and rated for boat fuel systems (Vehicle Service Type: Boat), not automotive applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-7784 fit the Mercruiser 3.0L engine?\u003c\/strong\u003e Yes, the Sierra 18-7784 fits the Mercruiser 140\/3.0L\/LX engine along with the 120\/2.5L, 3.7L, 3.8L, and 4.3L models.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for this Sierra fuel filter?\u003c\/strong\u003e The UPC listed for the Sierra 18-7784 fuel filter is 808282106126.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988388098267,"sku":"SIE-18-7784","price":12.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-7784__67571.1722518348.500.750.jpg?v=1785189129","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-7784-marine-fuel-filter-replaces-mercury-35-803897q1-fits-mercruiser-2-5l-3-0l-3-7l-3-8l-4-3l-stern-drive","provider":"Good Vibes Marina","version":"1.0","type":"link"}