{"product_id":"mercarb-2v-marine-carburetor-for-mercruiser-4-3l-2002-2004-replaces-3310-864941a01-new-casting-gasket-included","title":"Sierra 18-7373N Mercarb 2V Carburetor, Replaces Mercruiser 3310-864941A01, for 2002-2004 4.3L Engines","description":"\u003cp\u003eThe Sierra 18-7373N is a new-casting, non-remanufactured Mercarb style 2-barrel (2V) carburetor built for Mercruiser stern drive applications. Unlike rebuilt cores, this unit is produced from new castings engineered to meet or exceed original equipment specifications, then flow-tested across the entire throttle range to confirm consistent performance. Fuel mixture and idle settings are pre-set at the factory, so only minor idle and choke adjustments are typically needed during installation, reducing setup time compared to a used or rebuilt core.\u003c\/p\u003e\u003cp\u003eThis carburetor is designed as a direct replacement for Mercruiser 3310-864941A01 and is intended for 2002-2004 4.3L engines within serial number range OM615000-OW300012. A gasket is included with the unit; if a replacement gasket is needed later, use Sierra part number 18-0994. For a full rebuild rather than a direct-replacement carburetor, Sierra also offers replacement carburetor kit 18-7098-1 for this application.\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 18-7373N\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Mercarb style 2V carburetor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCasting Type:\u003c\/strong\u003e New casting, non-remanufactured\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGasket Included:\u003c\/strong\u003e Yes; replacement gasket is Sierra 18-0994\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecommended Rebuild Kit:\u003c\/strong\u003e Sierra 18-7098-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Machined\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFit Type:\u003c\/strong\u003e Universal fit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 4.18 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282303891\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eMercruiser 2002-2004 4.3L engines, serial number range OM615000-OW300012\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eMercruiser 3310-864941A01\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-7373N carburetor replace?\u003c\/strong\u003e It is a direct replacement for Mercruiser part number 3310-864941A01.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich engines is the 18-7373N carburetor designed for?\u003c\/strong\u003e It fits Mercruiser 2002-2004 4.3L engines within serial number range OM615000-OW300012.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a new or remanufactured carburetor?\u003c\/strong\u003e The 18-7373N is a new casting, non-remanufactured carburetor, not a rebuilt core.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-7373N come with a gasket?\u003c\/strong\u003e Yes, a gasket is included with the Sierra 18-7373N carburetor; the replacement gasket part number is Sierra 18-0994.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the carburetor need adjustment after installation?\u003c\/strong\u003e Fuel mixture and idle settings on the 18-7373N are pre-set at the factory, so typically only minor idle and choke adjustments are needed during installation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs there a rebuild kit alternative to buying the full 18-7373N carburetor?\u003c\/strong\u003e Yes, Sierra offers replacement carburetor kit 18-7098-1 for engines that use the 3310-864941A01 style carburetor.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-7373N carburetor weigh?\u003c\/strong\u003e The Sierra 18-7373N weighs 4.18 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat type of carburetor design is the 18-7373N?\u003c\/strong\u003e It is a Mercarb style 2-barrel (2V) carburetor.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat finish does the 18-7373N carburetor have?\u003c\/strong\u003e It has a machined finish.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow is the 18-7373N tested before it ships?\u003c\/strong\u003e Each 18-7373N carburetor is flow-tested throughout the entire throttle range to verify performance before it leaves the factory.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-7373N carburetor calibrated for fuel efficiency?\u003c\/strong\u003e Yes, the 18-7373N is calibrated and engineered to help maximize fuel efficiency and performance in its 4.3L Mercruiser application.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988384362715,"sku":"SIE-18-7373N","price":392.63,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-7373N__84466.1753467382.500.750.jpg?v=1785188475","url":"https:\/\/www.goodvibesmarina.com\/products\/mercarb-2v-marine-carburetor-for-mercruiser-4-3l-2002-2004-replaces-3310-864941a01-new-casting-gasket-included","provider":"Good Vibes Marina","version":"1.0","type":"link"}