{"product_id":"sierra-18-7738-carburetor-kit-for-mercury-9-9-15-hp-4-stroke-outboards-replaces-802706a1","title":"Sierra 18-7738 Carburetor Kit, Replaces Mercury Marine 802706A1, Fits 9.9 HP and 15 HP 4-Stroke Outboards","description":"\u003cp\u003eThe Sierra 18-7738 Carburetor Kit is a replacement carburetor rebuild kit engineered for Mercury outboard 4-stroke engines. It is built to replace Mercury Marine OEM part 802706A1, giving owners a direct, kit-for-kit way to restore original carburetor function without sourcing a full OEM assembly. The kit is intended for Mercury 9.9 HP 4-Stroke (323cc) outboards from 1999 and up, as well as Mercury 15 HP 4-Stroke outboards from 1998 and up, making it the correct rebuild solution for these two specific powerhead applications.\u003c\/p\u003e\u003cp\u003eCarburetor kits like the 18-7738 are used when an outboard is running rough, flooding, hard to start, or showing signs of stale-fuel varnish buildup inside the carburetor bowl and jets. Rebuilding with a dedicated kit restores factory-calibrated fuel metering rather than replacing the entire carburetor body, which keeps the repair focused and the original carburetor housing in service. The kit carries a machined exterior finish consistent with OEM-style carburetor hardware and is packaged as a complete, ready-to-install unit count of one.\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 18-7738\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Carburetor Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Mercury Outboard Carburetors and Kits\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplaces (OEM):\u003c\/strong\u003e Mercury Marine 802706A1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e Mercury 9.9 HP 4-Stroke (323cc), 1999 and up; Mercury 15 HP 4-Stroke, 1998 and up\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.01 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Dimensions:\u003c\/strong\u003e 11.684 cm L x 11.43 cm W x 5.588 cm H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e China\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\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMercury 9.9 HP 4-Stroke (323cc), 1999 and up\u003c\/li\u003e\n\u003cli\u003eMercury 15 HP 4-Stroke, 1998 and up\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eMercury Marine 802706A1\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-7738 carburetor kit replace?\u003c\/strong\u003e The Sierra 18-7738 carburetor kit is a direct replacement for Mercury Marine OEM part 802706A1.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich Mercury outboards is the 18-7738 kit designed for?\u003c\/strong\u003e This kit fits Mercury 9.9 HP 4-Stroke (323cc) outboards from 1999 and up, and Mercury 15 HP 4-Stroke outboards from 1998 and up.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-7738 kit work on a 1997 Mercury 9.9 HP outboard?\u003c\/strong\u003e No. The Sierra 18-7738 carburetor kit is specified for the 9.9 HP 4-Stroke (323cc) engine starting in 1999, so earlier model years are not covered by this listing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-7738 carburetor kit weigh?\u003c\/strong\u003e The Sierra 18-7738 carburetor kit weighs 0.01 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-7738 an OEM Mercury part or an aftermarket kit?\u003c\/strong\u003e It is a Sierra-brand aftermarket carburetor kit manufactured to replace Mercury Marine OEM part 802706A1.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included in the Sierra 18-7738 kit?\u003c\/strong\u003e The kit ships as a single complete carburetor rebuild kit (unit count of one) under Sierra part number 18-7738.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-7738 kit fit a Mercury 15 HP 2-stroke motor?\u003c\/strong\u003e No, the Sierra 18-7738 carburetor kit is fitted to the Mercury 15 HP 4-Stroke outboard from 1998 and up, not 2-stroke models.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat finish does the carburetor hardware have?\u003c\/strong\u003e The components in the 18-7738 kit have a machined exterior finish.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhere is the Sierra 18-7738 carburetor kit manufactured?\u003c\/strong\u003e The country of origin for the Sierra 18-7738 kit is China.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan this kit be used to rebuild a carburetor showing flooding or hard-starting symptoms?\u003c\/strong\u003e Yes, carburetor kits such as the Sierra 18-7738 are used to rebuild carburetors on Mercury 9.9 HP and 15 HP 4-Stroke outboards experiencing flooding, rough idle, or hard starting due to worn or gummed internal components.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the package dimensions of the 18-7738 kit?\u003c\/strong\u003e The Sierra 18-7738 carburetor kit ships in packaging measuring 11.684 cm long by 11.43 cm wide by 5.588 cm high.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-7738 kit a full carburetor replacement or a rebuild kit?\u003c\/strong\u003e It is a rebuild kit, meaning it supplies the internal components needed to service the existing carburetor body rather than replacing the whole carburetor assembly.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988386689243,"sku":"SIE-18-7738","price":43.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-7738__13530.1722363218.500.750.jpg?v=1785189156","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-7738-carburetor-kit-for-mercury-9-9-15-hp-4-stroke-outboards-replaces-802706a1","provider":"Good Vibes Marina","version":"1.0","type":"link"}