{"product_id":"sierra-18-8868-2-fuel-pump-for-mercruiser-4-3l-5-0l-5-7l","title":"Sierra 18-8868-2 Electric Fuel Pump for MerCruiser 4.3L\/5.0L\/5.7L","description":"\u003cp class=\"nvn-hero\"\u003eThe Sierra 18-8868-2 is a direct-fit electric fuel pump for MerCruiser 4.3L, 5.0L, and 5.7L gasoline engines. It ships with the fittings and O-rings you need, so you can get a fuel-starved sterndrive or inboard running right again in one sitting.\u003c\/p\u003e\n\n\u003cdiv class=\"nvn-description\"\u003e\n\u003cp\u003eIf your MerCruiser gas engine is starving for fuel, cranking but not catching, or you've pulled the cover after winter layup and found a cracked pump body, this is the electric fuel pump that gets you back on the water. Sierra built the 18-8868-2 to drop into 4.3L V6, 5.0L V8, and 5.7L V8 MerCruiser gasoline engines, and it comes with the fittings and O-rings you need to seal it up right the first time.\u003c\/p\u003e\n\u003cp\u003eThis is a full electric fuel pump assembly, not just a diaphragm kit. The dual threaded ends let you thread your existing fuel lines straight onto the pump, and because the fittings and O-rings ship in the box, you're not making a second trip to the parts counter halfway through the job. Sierra engineers their parts to meet or exceed the original equipment they replace, so the flow and pressure line up with what your engine's fuel system was designed around.\u003c\/p\u003e\n\u003cp\u003eWho needs one? Any boater running a carbureted or fuel-injected MerCruiser small block or V6 that's showing fuel delivery trouble. Hard starts, stumbling under load, a whining pump, or a slow pressure bleed-down after shutdown are all classic signs. If you've traced the problem past the filter and the lines and landed on the pump, this is the part that fixes it. It's also a smart spare to carry if you cruise well offshore and don't want a fuel pump failure to end your season.\u003c\/p\u003e\n\u003cp\u003eA few things we've learned installing these. Relieve the fuel system pressure and disconnect the battery before you touch anything, and keep a fistful of shop rags handy because a little gas is going to spill no matter how careful you are. When you fit the new O-rings, lubricate them with clean gasoline instead of grease. Grease can contaminate the fuel and swell the wrong seals. Snug the threaded fittings firmly but don't gorilla them down, since overtightening is the fastest way to crack a fitting or distort an O-ring. Take a minute to double-check that both threaded ends are square before you tighten, because a cross-threaded fitting will weep fuel no matter how hard you crank on it.\u003c\/p\u003e\n\u003cp\u003eRouting matters more than people think in a hot engine bay. Keep the fuel line clear of the exhaust manifold so radiant heat doesn't cook the hose and harden the seals over a couple of seasons. On the EFI 5.0L and 5.7L V8s, leave a little slack in the line so normal engine movement doesn't tug the connection loose at the pump. And if you don't already run a spin-on fuel and water separator upstream, add one. A clean 10-micron filter ahead of the pump keeps grit off the new O-rings and helps the whole assembly last.\u003c\/p\u003e\n\u003cp\u003eOne honest note on modern pump gas. The ethanol in most dock fuel is harder on rubber than the straight gasoline these engines were born with. That's not a knock on this pump, it's just the reality of the fuel you're buying. Pull the cowling once a season, eyeball the O-rings and the barb ends for weeping or cracking, and you'll catch a problem in the driveway instead of three miles out. This pump is gasoline-rated and handles the E10 fuel you'll find at nearly every marina.\u003c\/p\u003e\n\u003cp\u003eBottom line, the Sierra 18-8868-2 is a straightforward, engine-specific replacement for a part that strands a lot of boats every summer. It fits the most common MerCruiser gas engines, it arrives with the hardware to finish the job, and it carries Sierra's reputation for marine parts that survive the heat, vibration, and moisture of life in the bilge. Confirm it against your original pump, order it, and get your weekend back.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul class=\"nvn-features\"\u003e\n  \u003cli\u003eElectric fuel pump assembly engineered to meet or exceed the OEM part it replaces, so pressure and flow match what your MerCruiser expects\u003c\/li\u003e\n  \u003cli\u003eFits MerCruiser 4.3L V6, 5.0L V8, and 5.7L V8 gasoline engines, covering a wide range of sterndrive and inboard rigs\u003c\/li\u003e\n  \u003cli\u003eDual threaded ends thread directly onto your existing fuel lines for a clean, secure connection\u003c\/li\u003e\n  \u003cli\u003eFittings and O-rings included in the box, so you can finish the install in one sitting\u003c\/li\u003e\n  \u003cli\u003eGasoline-rated construction stands up to the E10 ethanol-blend fuel found at most fuel docks\u003c\/li\u003e\n  \u003cli\u003eDirect replacement under Sierra part number 18-8868-2, which takes the guesswork out of ordering\u003c\/li\u003e\n  \u003cli\u003eBuilt to Sierra's marine-grade standard for parts that survive engine-bay heat, vibration, and moisture\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv class=\"nvn-trust\"\u003e\n  \u003ch2\u003eWhy Buy from NVN Marine\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eAuthorized Sierra Marine reseller, full manufacturer warranty\u003c\/li\u003e\n    \u003cli\u003eNMEA member and ABYC certified, advice from real boat techs\u003c\/li\u003e\n    \u003cli\u003eSame-day shipping before 3 PM ET on in-stock items\u003c\/li\u003e\n    \u003cli\u003eNY headquarters and Fort Lauderdale flagship retail store\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"nvn-faq\"\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat engines does the Sierra 18-8868-2 fit?\u003c\/summary\u003e\n    \u003cp\u003eIt's built for MerCruiser 4.3L V6, 5.0L V8, and 5.7L V8 gasoline engines. Always confirm your engine model and the original pump part number before ordering, since fuel systems changed across model years.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eDoes it come with fittings and O-rings?\u003c\/summary\u003e\n    \u003cp\u003eYes. The fittings and O-rings ship in the box, so you have what you need to seal both threaded ends during the install.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs this an electric fuel pump or a mechanical one?\u003c\/summary\u003e\n    \u003cp\u003eIt's a complete electric fuel pump assembly. It replaces the electric pump on the engines it's listed to fit.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWill it work with ethanol-blended gas?\u003c\/summary\u003e\n    \u003cp\u003eYes. It's gasoline-rated and handles the E10 pump gas most fuel docks carry. Ethanol is harder on rubber over time, so inspect the O-rings each season.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat tools do I need to install it?\u003c\/summary\u003e\n    \u003cp\u003eBasic hand tools and wrenches for the threaded fittings. Relieve the fuel system pressure and disconnect the battery first, and keep shop rags ready for spilled fuel.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eShould I replace the fuel filter at the same time?\u003c\/summary\u003e\n    \u003cp\u003eIt's a smart move. A clean spin-on fuel and water separator upstream keeps debris off the new pump's O-rings and helps it last longer.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow do I keep the new O-rings from leaking?\u003c\/summary\u003e\n    \u003cp\u003eLubricate them with clean gasoline, never grease, and don't overtighten the fittings. Route the fuel line away from the exhaust manifold so heat doesn't harden the seals.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs this a genuine Sierra part?\u003c\/summary\u003e\n    \u003cp\u003eYes. It's the Sierra 18-8868-2, sold new with full manufacturer warranty through an authorized Sierra dealer.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"nvn-specs\"\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003cth\u003eTitle\u003c\/th\u003e\n\u003ctd\u003eDual Threaded Ends; Gasoline; With Fittings\/ O-Rings; Fits Mercrusier 5.0 Liter\/ 5.7 Liter V8 And 4.3 Liter\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eSierra Marine\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eManufacturer Part Number\u003c\/th\u003e\n\u003ctd\u003e18-8868-2\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eUPC\u003c\/th\u003e\n\u003ctd\u003e808282390440\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eProduct Type\u003c\/th\u003e\n\u003ctd\u003eElectric Fuel Pump\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eFuel Type\u003c\/th\u003e\n\u003ctd\u003eGasoline\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eEnd Configuration\u003c\/th\u003e\n\u003ctd\u003eDual threaded ends\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eIncluded Hardware\u003c\/th\u003e\n\u003ctd\u003eFittings and O-rings\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eEngine Fitment (V6)\u003c\/th\u003e\n\u003ctd\u003eMerCruiser 4.3 Liter\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eEngine Fitment (V8)\u003c\/th\u003e\n\u003ctd\u003eMerCruiser 5.0 Liter\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eEngine Fitment (V8)\u003c\/th\u003e\n\u003ctd\u003eMerCruiser 5.7 Liter\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eApplication\u003c\/th\u003e\n\u003ctd\u003eMarine gasoline sterndrive and inboard engines\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n    \"@context\": \"https:\/\/schema.org\",\n    \"@type\": \"FAQPage\",\n    \"mainEntity\": [\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What engines does the Sierra 18-8868-2 fit?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It's built for MerCruiser 4.3L V6, 5.0L V8, and 5.7L V8 gasoline engines. Always confirm your engine model and the original pump part number before ordering, since fuel systems changed across model years.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Does it come with fittings and O-rings?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Yes. The fittings and O-rings ship in the box, so you have what you need to seal both threaded ends during the install.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Is this an electric fuel pump or a mechanical one?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It's a complete electric fuel pump assembly. It replaces the electric pump on the engines it's listed to fit.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Will it work with ethanol-blended gas?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Yes. It's gasoline-rated and handles the E10 pump gas most fuel docks carry. Ethanol is harder on rubber over time, so inspect the O-rings each season.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What tools do I need to install it?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Basic hand tools and wrenches for the threaded fittings. Relieve the fuel system pressure and disconnect the battery first, and keep shop rags ready for spilled fuel.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Should I replace the fuel filter at the same time?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It's a smart move. A clean spin-on fuel and water separator upstream keeps debris off the new pump's O-rings and helps it last longer.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"How do I keep the new O-rings from leaking?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Lubricate them with clean gasoline, never grease, and don't overtighten the fittings. Route the fuel line away from the exhaust manifold so heat doesn't harden the seals.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Is this a genuine Sierra part?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Yes. It's the Sierra 18-8868-2, sold new with full manufacturer warranty through an authorized Sierra dealer.\"\n            }\n        }\n    ]\n}\n\u003c\/script\u003e\n","brand":"Sierra Marine","offers":[{"title":"Default Title","offer_id":44999743307869,"sku":"2008031","price":262.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/files\/ImageServerAPI_11a65f81-7053-4ceb-9843-c64fd06ea2d0.jpg?v=1788722528","url":"https:\/\/nvnmarine.com\/products\/sierra-18-8868-2-fuel-pump-for-mercruiser-4-3l-5-0l-5-7l","provider":"NVN Marine","version":"1.0","type":"link"}