{"product_id":"sierra-18-7855-marine-fuel-filter-rochester-carburetor-inlet-replaces-mercury-marine-1397-2150-20-micron","title":"Sierra 18-7855 Fuel Filter, Rochester Carburetor Inlet Type, Replaces OMC 910139 and 983870","description":"\u003cp\u003eThe Sierra 18-7855 is a Rochester carburetor inlet-type fuel filter built to meet or exceed the quality of the original equipment part it replaces. It is designed to trap contaminants and debris before fuel reaches the carburetor, protecting jets and needle valves from clogging and helping the engine run on clean, consistent fuel delivery. The filter carries a 20 micron rating, providing fine filtration suited to carbureted marine engines that rely on a Rochester-style inlet fitting.\u003c\/p\u003e\u003cp\u003eConstruction uses a plastic outer housing sized for a direct drop-in fit at the carburetor fuel inlet. The 18-7855 is a straightforward service part for routine fuel system maintenance, and is cross-referenced to the OMC part numbers it replaces so you can order the correct Sierra equivalent using either the Sierra number or the original OMC number.\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 18-7855\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Fuel Filter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilter Inlet Type:\u003c\/strong\u003e Rochester carburetor inlet\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMicron Rating:\u003c\/strong\u003e 20 micron\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOuter Material:\u003c\/strong\u003e Plastic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.01 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit Count:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eRochester carburetor inlet-style fuel systems\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOMC 910139\u003c\/li\u003e\n\u003cli\u003eOMC 983870\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-7855 fuel filter replace?\u003c\/strong\u003e The Sierra 18-7855 is a direct equivalent for OMC fuel filter numbers 910139 and 983870, so it can be ordered as a drop-in replacement using either the original OMC number or the Sierra number.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the micron rating of this fuel filter?\u003c\/strong\u003e The 18-7855 carries a 20 micron rating, which determines how fine the particles are that it traps before fuel reaches the carburetor.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat type of carburetor does the 18-7855 fit?\u003c\/strong\u003e This filter is built for a Rochester carburetor inlet type fuel connection, matching the inlet fitting used on Rochester-equipped marine engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the Sierra 18-7855 filter made from?\u003c\/strong\u003e The outer housing of the 18-7855 fuel filter is plastic.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-7855 fuel filter weigh?\u003c\/strong\u003e It weighs 0.01 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-7855 a genuine OMC part or an aftermarket equivalent?\u003c\/strong\u003e The 18-7855 is a Sierra-manufactured aftermarket fuel filter designed to meet or exceed the quality of the OMC 910139 and 983870 fuel filters it replaces, rather than an OMC-branded original part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many filters come in the package?\u003c\/strong\u003e The Sierra 18-7855 is sold as a single fuel filter, one unit per package.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-7855 fit a carburetor with a different inlet style?\u003c\/strong\u003e No. The 18-7855 is built specifically for a Rochester carburetor inlet type connection, so it should only be used on fuel systems with that inlet fitting.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow is the 18-7855 different from other Sierra fuel filters in the same family?\u003c\/strong\u003e The 18-7855 is the Rochester carburetor inlet version; other part numbers in the same catalog grouping use different inlet fittings and are not interchangeable with the 18-7855.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow often should a fuel filter like the 18-7855 be replaced?\u003c\/strong\u003e Sierra fuel filters such as the 18-7855 are routine maintenance items intended to be replaced whenever fuel flow restriction or contamination is suspected, or as part of regular fuel system service.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988390424795,"sku":"SIE-18-7855","price":10.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-7855_lg__64558.1558132844.500.750.jpg?v=1785188919","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-7855-marine-fuel-filter-rochester-carburetor-inlet-replaces-mercury-marine-1397-2150-20-micron","provider":"Good Vibes Marina","version":"1.0","type":"link"}