{"product_id":"mercury-quicksilver-fuel-line-quick-connect-fitting-8m0146934","title":"Mercury Quicksilver Fuel Line Quick Connect Fitting 8M0146934 — 5\/8 to 3\/8 in. | V6 \u0026 V8 FourStroke","description":"\u003ch2\u003eMercury Quicksilver Fuel Line Quick Connect Fitting — OEM 8M0146934 | 5\/8 to 3\/8 in.\u003c\/h2\u003e\u003cp\u003eThis genuine OEM quick-connect fuel fitting is the exact-fit fuel-system connection for modern Mercury 3.4L V6 and 4.6L V8 FourStroke outboards. Part 8M0146934 connects 5\/8-inch to 3\/8-inch fuel hose and is built with materials designed for modern fuel systems, including ethanol-blended gasoline. If a quick-connect on your fuel system is leaking, cracked, or no longer locking securely, this is the OEM replacement.\u003c\/p\u003e\u003ch2\u003ePart Information\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Number:\u003c\/strong\u003e 8M0146934\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMercury Reference:\u003c\/strong\u003e 22-8M0146934\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Mercury \/ Quicksilver\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOfficial Product Type:\u003c\/strong\u003e Fuel-line quick-connect fitting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnection Size:\u003c\/strong\u003e 5\/8 in. to 3\/8 in. hose\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem:\u003c\/strong\u003e Fuel delivery \/ boat-mounted fuel filter assembly\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEthanol Compatibility:\u003c\/strong\u003e Suitable for ethanol-blended gasoline\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGTIN \/ UPC:\u003c\/strong\u003e 745061241107\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCompatible Applications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eMercury 3.4L V6 FourStroke 175–225 HP — serial 2B529482 and up\u003c\/li\u003e\n\u003cli\u003eMercury 4.6L V8 FourStroke 200–300 HP — serial 2B529482 and up\u003c\/li\u003e\n\u003cli\u003eMercury 4.6L V8 Pro XS — boat-mounted fuel filter with water-in-fuel sensor assembly\u003c\/li\u003e\n\u003cli\u003eMercury Verado — boat-mounted fuel filter with water-in-fuel sensor assembly (per OEM parts diagram)\u003c\/li\u003e\n\u003cli\u003eMercury Racing 150R and 200R — 3.4L V6 outboard applications\u003c\/li\u003e\n\u003cli\u003eConfirm engine model, serial number, and fuel-hose connection size before ordering — Mercury uses a different quick-connect fitting for 1\/2-inch hose applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhen to Replace\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eQuick-connect mechanism is damaged, cracked, or will not lock securely\u003c\/li\u003e\n\u003cli\u003eVisible fuel leak at the fitting or sealing surfaces\u003c\/li\u003e\n\u003cli\u003eSealing surfaces show deterioration, swelling, or cracking\u003c\/li\u003e\n\u003cli\u003eFitting is being replaced as part of a fuel-system inspection or hose replacement\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eDepressurize or isolate the fuel system before beginning service\u003c\/li\u003e\n\u003cli\u003eConfirm hose sizes and fitting orientation before installation\u003c\/li\u003e\n\u003cli\u003eInspect the mating connector and fuel hose for wear or damage\u003c\/li\u003e\n\u003cli\u003eVerify that the quick-connect locks fully and securely into position\u003c\/li\u003e\n\u003cli\u003eCheck carefully for any fuel leakage before operating the engine\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical FAQ\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWhat hose sizes does 8M0146934 connect?\u003c\/strong\u003e\u003cbr\u003eThis fitting connects 5\/8-inch to 3\/8-inch fuel hose. Mercury uses a separate quick-connect fitting for 5\/8-inch to 1\/2-inch applications (8M0152434, later updated to 8M0215873) — confirm your hose size before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this fitting safe for ethanol-blended fuel?\u003c\/strong\u003e\u003cbr\u003eYes. 8M0146934 is built with materials compatible with modern fuel systems including ethanol-blended gasoline, as specified for use on Mercury V6 and V8 FourStroke outboards.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I confirm this is the right fitting for my engine?\u003c\/strong\u003e\u003cbr\u003eConfirm the engine displacement (3.4L V6 or 4.6L V8), serial number (2B529482 and up), and the fuel-hose connection size (5\/8 in. to 3\/8 in.) against the application list above.\u003c\/p\u003e\u003ch2\u003eParts Desk Insights\u003c\/h2\u003e\u003cp\u003eThe most common ordering mistake with Mercury quick-connect fittings is not checking the hose size — Mercury uses multiple quick-connect configurations across the V6\/V8 FourStroke family, and the 3\/8-inch and 1\/2-inch versions look almost identical. Always confirm the connection size and engine serial number. This fitting is most often needed when a customer reports a fuel smell in the bilge or near the engine on a V6 or V8 FourStroke — a deteriorating or unlocked quick-connect is one of the first places to check. Browse the \u003ca href=\"\/collections\/hoses-fittings\"\u003eHoses \u0026amp; Fittings\u003c\/a\u003e collection for related fuel-system components.\u003c\/p\u003e","brand":"MERC","offers":[{"title":"Default Title","offer_id":51324694069284,"sku":"8M0146934","price":30.04,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/22bda848-8505-4756-a162-904e56856860.png?v=1788208483","url":"https:\/\/marisolmarine.com\/products\/mercury-quicksilver-fuel-line-quick-connect-fitting-8m0146934","provider":"Marisol Marine Company","version":"1.0","type":"link"}