{"product_id":"yeoflagtrade-electric-fuel-pump-replacement-861155a3-direct-fit-dual-line-low-pressure-for-mercruiser-4-3l-5-0l-5-7l","title":"Yeoflagtrade Electric Fuel Pump Replacement 861155A3 — Direct-Fit Dual-Line Low-Pressure for Mercruiser 4.3L\/5.0L\/5.7L","description":"\u003cp\u003e\u003cstrong\u003eThe Yeoflagtrade 861155A3 electric fuel pump is a direct-fit, low-pressure replacement engineered to restore reliable fuel delivery for Mercury Mercruiser 4.3L, 5.0L and 5.7L carbureted marine engines.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eBuilt to match the dual-line layout used on many older MerCruiser systems, this pump replaces OE numbers including 861155A3, 861155-2 and 18-8868. It is designed for carbureted V6 and V8 powerplants commonly found in recreational boats, offering an aftermarket option when the original pump shows wear, leaks, or dropping pressure. Yeoflagtrade emphasizes durability with components rated for extended service life so you can spend more time on the water and less time troubleshooting fuel delivery.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this pump fit my Mercury MerCruiser engine?\u003c\/h3\u003e\n\u003cp\u003eThe 861155A3 model is made to be a direct replacement for the low-pressure, dual-line fuel pumps used on late-1990s and early-2000s Mercruiser carbureted engines. Verify fitment using your engine year, model and the OE part numbers before purchase to ensure compatibility.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible with 4.3L V6 (262 ci), 5.0L V8 (305 ci) and many 5.7L (350 ci) carbureted engines.\u003c\/li\u003e\n  \u003cli\u003eReplaces OEM numbers: 861155A3, 861155-2, 18-8868, 935432 and variations.\u003c\/li\u003e\n  \u003cli\u003eDual-line design mirrors factory transfer pump layout for straightforward installation.\u003c\/li\u003e\n  \u003cli\u003eCheck your boat’s year\/make\/model and engine block stamping for confirmation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the performance and durability features of this replacement pump?\u003c\/h3\u003e\n\u003cp\u003eYeoflagtrade engineered this pump to deliver consistent low-pressure flow suitable for carburetor fuel systems. Internal components are selected to resist marine fuel exposure and to provide many hours of dependable operation under normal boating conditions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eLow-pressure output tuned for carbureted MerCruiser engines to maintain steady fuel feed.\u003c\/li\u003e\n  \u003cli\u003eDual-line configuration supports common fuel transfer setups on these engines.\u003c\/li\u003e\n  \u003cli\u003eConstruction targeted for long service life—engineered for extended operating hours.\u003c\/li\u003e\n  \u003cli\u003eManufactured to replace known OE part numbers for easier sourcing and interchangeability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow easy is installation and what should I prepare for?\u003c\/h3\u003e\n\u003cp\u003eInstallation is generally straightforward for a mechanically inclined owner or marine technician because the pump uses the factory mounting and dual-line connections. Basic tools and attention to fuel safety are required; replace fuel lines and clamps if they show age or damage.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMounts using the same bolt pattern as original MerCruiser pumps—no custom brackets needed in most cases.\u003c\/li\u003e\n  \u003cli\u003eDual inlet\/outlet lines attach to standard hose fittings; use marine-rated hose clamps.\u003c\/li\u003e\n  \u003cli\u003eTurn off battery power and relieve fuel pressure before beginning work for safety.\u003c\/li\u003e\n  \u003cli\u003eInspect adjacent fuel lines and fittings; replace brittle hoses to prevent leaks.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this pump work with modern fuel blends and accessories?\u003c\/h3\u003e\n\u003cp\u003eThe pump is intended for conventional gasoline blends typical of recreational marine use and for carbureted systems without high-pressure fuel injection. If you use ethanol-blended fuels, verify compatibility of hoses and seals; upgrading to ethanol-resistant components is recommended when needed.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDesigned for carburetor systems; not for high-pressure EFI systems.\u003c\/li\u003e\n  \u003cli\u003eUse ethanol-compatible hoses and seals if running ethanol-blended fuels.\u003c\/li\u003e\n  \u003cli\u003eAvoid exposure to solvents or fuels outside typical marine gasoline specifications.\u003c\/li\u003e\n  \u003cli\u003eCheck local marine regulations regarding fuel-handling components and replacements.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Yeoflagtrade 861155A3 pump is aimed at owners, mechanics, and boatyards maintaining older MerCruiser-equipped boats that rely on carbureted 4.3L, 5.0L or 5.7L engines. It suits anyone needing a dependable, OE-interchange replacement—particularly boaters restoring older vessels or replacing worn fuel pumps to restore reliable starting and running. Always confirm compatibility with your engine year and OE part numbers before ordering, and consider professional installation if you are not comfortable with fuel-system work.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does this pump fit my 2000 MerCruiser 5.0L engine?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes—this 861155A3 pump is compatible with many 2000 MerCruiser 5.0L carbureted engines; confirm with your OE part number before buying.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is this pump suitable for fuel-injected MerCruiser engines?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No—this is a low-pressure pump designed for carburetor systems, not high-pressure EFI applications.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Yeoflagtrade","offers":[{"title":"Default Title","offer_id":48084168081566,"sku":"B0CGLTW5SG","price":73.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/yeoflagtrade-front-view-pump.jpg?v=1785848141","url":"https:\/\/northtrailauto.ca\/products\/yeoflagtrade-electric-fuel-pump-replacement-861155a3-direct-fit-dual-line-low-pressure-for-mercruiser-4-3l-5-0l-5-7l","provider":"North Trail Auto","version":"1.0","type":"link"}