{"product_id":"sierra-18-7930-fuel-filter-for-1977-1983-omc-fuel-systems-replaces-omc-173326","title":"Sierra Fuel Filter 18-7930, Replaces OMC 173326, for 1977-83 OMC Fuel Systems with Add-On Filter Kit","description":"\u003cp\u003eThe Sierra 18-7930 is a fuel filter engineered as a direct replacement for OMC 173326, built for 1977-83 fuel systems equipped with an add-on filter kit. It is designed to trap contaminants, debris, and water from entering the fuel system, helping protect the carburetor and fuel delivery components from the damage that dirty or moisture-laden fuel can cause. The filter measures 5\/16 inch, or 79 millimeters, in diameter and carries a 20 micron filtration rating, sizing it to capture fine particulate while maintaining adequate fuel flow to the engine.\u003c\/p\u003e\u003cp\u003eSierra manufactures this filter as a like-for-like fit for boat owners running older OMC fuel systems that were originally set up with an add-on filter kit, making it a straightforward swap during routine maintenance or when replacing a clogged or aging filter. Because fuel filtration is a wear item, keeping a fresh 18-7930 on hand or on a maintenance schedule helps avoid fuel starvation, rough running, and stalling caused by restricted fuel flow. The filter is sold as a single replacement cartridge and installs into the existing add-on filter kit housing already present on the covered 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 18-7930\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Fuel Filter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e 1977-83 fuel system with add-on filter kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMicron Rating:\u003c\/strong\u003e 20 micron\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 5\/16 inch (79 millimeters)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Diameter:\u003c\/strong\u003e 79 millimeters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.35 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplaces (OEM):\u003c\/strong\u003e OMC 173326\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e1977-83 fuel system with add-on filter kit (OMC)\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eOMC 173326\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-7930 fuel filter replace?\u003c\/strong\u003e The Sierra 18-7930 is a direct replacement for OMC 173326, designed for 1977-83 fuel systems equipped with an add-on filter kit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the micron rating of the 18-7930 fuel filter?\u003c\/strong\u003e The 18-7930 carries a 20 micron filtration rating, which sizes it to trap fine contaminants while maintaining fuel flow to the engine.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat size is the Sierra 18-7930 fuel filter?\u003c\/strong\u003e It measures 5\/16 inch, or 79 millimeters, in diameter.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-7930 fit any fuel system?\u003c\/strong\u003e No, the Sierra 18-7930 is fitted specifically to 1977-83 fuel systems that use an add-on filter kit; it is not a universal fuel filter.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-7930 fuel filter weigh?\u003c\/strong\u003e The Sierra 18-7930 weighs 0.35 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-7930 an OEM part or aftermarket?\u003c\/strong\u003e The 18-7930 is a Sierra-manufactured aftermarket fuel filter made to replace the OEM number OMC 173326.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I know if OMC 173326 is the right cross-reference for my filter kit?\u003c\/strong\u003e If your existing add-on filter kit fuel filter is stamped OMC 173326, the Sierra 18-7930 is the correct replacement for a 1977-83 fuel system with that setup.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when I order the 18-7930?\u003c\/strong\u003e The Sierra 18-7930 ships as a single replacement fuel filter cartridge for installation into an existing add-on filter kit housing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow often should the 18-7930 fuel filter be replaced?\u003c\/strong\u003e Fuel filters like the Sierra 18-7930 are a wear item and should be replaced as part of routine fuel system maintenance to prevent restricted fuel flow and stalling.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill a clogged 18-7930 cause engine problems?\u003c\/strong\u003e Yes, a clogged Sierra 18-7930 can restrict fuel flow and lead to fuel starvation, rough running, or stalling in the 1977-83 add-on filter kit fuel system it serves.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-7930 filter housing included?\u003c\/strong\u003e No, the 18-7930 is the replacement filter element only; it installs into the fuel system's existing add-on filter kit housing.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988390883547,"sku":"SIE-18-7930","price":19.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-7930_lg__05493.1558130477.500.750.jpg?v=1785189205","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-7930-fuel-filter-for-1977-1983-omc-fuel-systems-replaces-omc-173326","provider":"Good Vibes Marina","version":"1.0","type":"link"}