{"product_id":"sierra-18-7746-carburetor-repair-kit-for-mercruiser-90-120-140-hp-l4-rochester-2gc-2-barrel-replaces-823427a1","title":"Sierra 18-7746 Carburetor Kit, Replaces 1347-818619R02, for Mercruiser 90-140 HP R2\/2GC and R\/2GC Carburetors","description":"\u003cp\u003eThe Sierra 18-7746 Carburetor Kit is a repair kit for Rochester R2\/2GC and R\/2GC two-barrel carburetors used on Mercruiser inline four-cylinder engines. It is built to meet or exceed the specifications of the original equipment carburetor components it replaces, giving boat owners a reliable way to rebuild a worn or leaking carburetor rather than replacing the entire unit. The kit covers a wide span of Mercruiser engine applications, from 90 HP 96 cubic inch and 120 HP 153 cubic inch engines through 140 HP 181 cubic inch engines, spanning model years from the late 1960s through the early 1980s depending on the specific engine and carburetor model.\u003c\/p\u003e\u003cp\u003eSierra manufactures this kit to perform in the harsh marine environment, where fuel system components are exposed to ethanol-blended fuels, vibration, and moisture that can degrade gaskets, needles, and seats over time. Rebuilding the carburetor with this kit restores proper fuel metering and idle performance without the cost of a full carburetor replacement. The kit is intended for use on the R2\/2GC and R\/2GC Rochester carburetor models fitted to the Mercruiser inline four-cylinder engines listed below, and it is backed by Sierra's warranty on marine replacement parts.\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 18-7746\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Carburetor Repair Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Carburetor Models:\u003c\/strong\u003e R2\/2GC, R\/2GC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Compatibility:\u003c\/strong\u003e 90 HP 96 cid L4 (1970-1972), 120 HP 153 cid L4 (1972-1982), 140 HP 181 cid L4 (1968-1973)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e 1347-818619R02, 1347-818620R02\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExterior Finish:\u003c\/strong\u003e Machined\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit Count:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Components:\u003c\/strong\u003e Carburetor Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.34 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e90 HP, 96 cid L4, 1970-1971, R2\/2GC carburetor\u003c\/li\u003e\n\u003cli\u003e90 HP, 96 cid L4, 1972, R2\/2GC carburetor\u003c\/li\u003e\n\u003cli\u003e120 HP, 153 cid L4, 1972-1973, R2\/2GC carburetor\u003c\/li\u003e\n\u003cli\u003e120 HP, 153 cid L4, 1974-1975, R2\/2GC carburetor\u003c\/li\u003e\n\u003cli\u003e120 HP, 153 cid L4, 1976-1978, R2\/2GC carburetor\u003c\/li\u003e\n\u003cli\u003e120 HP, 153 cid L4, 1979-1982, R2\/2GC carburetor\u003c\/li\u003e\n\u003cli\u003e140 HP, 181 cid L4, 1968-1969, R\/2GC carburetor\u003c\/li\u003e\n\u003cli\u003e140 HP, 181 cid L4, 1970, R\/2GC carburetor\u003c\/li\u003e\n\u003cli\u003e140 HP, 181 cid L4, 1970-1973, R\/2GC carburetor\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e1347-818619R02\u003c\/li\u003e\n\u003cli\u003e1347-818620R02\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-7746 carburetor kit fit?\u003c\/strong\u003e The Sierra 18-7746 fits Mercruiser inline four-cylinder engines equipped with Rochester R2\/2GC or R\/2GC carburetors, covering 90 HP 96 cid engines from 1970-1972, 120 HP 153 cid engines from 1972-1982, and 140 HP 181 cid engines from 1968-1973.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich OEM part numbers does this kit replace?\u003c\/strong\u003e The 18-7746 kit replaces OEM numbers 1347-818619R02 and 1347-818620R02, depending on which R2\/2GC or R\/2GC carburetor application it is used on.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-7746 kit work on both the R2\/2GC and R\/2GC carburetor models?\u003c\/strong\u003e Yes, this single Sierra kit, part number 18-7746, is listed for both the R2\/2GC carburetor used on 90 HP and 120 HP applications and the R\/2GC carburetor used on 140 HP applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the carburetor kit weigh?\u003c\/strong\u003e The Sierra 18-7746 carburetor kit weighs 0.34 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a full carburetor or a rebuild kit?\u003c\/strong\u003e The 18-7746 is a carburetor repair kit containing the components needed to rebuild an existing R2\/2GC or R\/2GC carburetor, not a complete replacement carburetor assembly.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included in the Sierra 18-7746 kit?\u003c\/strong\u003e The kit is listed with included carburetor kit components sized for the R2\/2GC and R\/2GC Rochester two-barrel carburetors used on the covered Mercruiser applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-7746 built to OEM standards?\u003c\/strong\u003e Sierra manufactures the 18-7746 kit to meet or exceed the original equipment carburetor components it replaces, for use in the same marine service conditions as the OEM parts.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this kit fit a 1975 Mercruiser 120 HP engine?\u003c\/strong\u003e Yes, the 18-7746 covers the 120 HP 153 cid L4 engine for the 1974-1975 model years when equipped with the R2\/2GC carburetor.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat finish does the kit have?\u003c\/strong\u003e Components in the Sierra 18-7746 kit have a machined exterior finish.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-7746 kit fit a 140 HP engine from 1969?\u003c\/strong\u003e Yes, the 140 HP 181 cid L4 engine for the 1968-1969 model years with the R\/2GC carburetor is a listed application for the Sierra 18-7746 kit.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988387410139,"sku":"SIE-18-7746","price":28.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-7746_lg__12261.1722492601.500.750.jpg?v=1785188252","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-7746-carburetor-repair-kit-for-mercruiser-90-120-140-hp-l4-rochester-2gc-2-barrel-replaces-823427a1","provider":"Good Vibes Marina","version":"1.0","type":"link"}