{"product_id":"five-oceans-3-8-fuel-line-primer-bulb-large-universal-outboard-primer-epa-carb-ethanol-compatible","title":"Five Oceans 3\/8\" Fuel Line Primer Bulb — Large Universal Outboard Primer (EPA\/CARB, Ethanol-Compatible)","description":"\u003cp\u003e\u003cstrong\u003eFive Oceans 3\/8-inch universal primer bulb (FO-4279) is a durable, EPA\/CARB-approved fuel line bulb designed to reliably prime outboard motors and handle ethanol-blended fuels.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis large 3\/8\" inside-diameter primer bulb is built for marine use and comes with barb-end hose connectors and stainless-steel clamps for a secure installation. Constructed from multi-layer, low-permeation material, the bulb resists weather, UV degradation, and the corrosive effects of modern gasoline blends — including up to 85% ethanol gasoline, diesel, and biodiesel blends. The FO-4279 meets current Environmental Protection Agency and CARB regulations, making it a suitable upgrade or replacement for many recreational and commercial boats.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this primer bulb make starting an outboard easier?\u003c\/h3\u003e\n\u003cp\u003eThe primer bulb creates positive fuel flow from the tank to the engine, removing air pockets and restoring pressure before ignition. Its large 3\/8\" bore delivers higher volume flow for quick, effective priming, especially after long idle periods or fuel system maintenance.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e3\/8\" inside diameter for stronger suction and faster fuel delivery\u003c\/li\u003e\n  \u003cli\u003eBarb-end connectors and clamps included for immediate installation\u003c\/li\u003e\n  \u003cli\u003eMulti-layer construction reduces fuel vapor permeation that causes poor priming\u003c\/li\u003e\n  \u003cli\u003eCompatible with gasoline, diesel, and ethanol\/biodiesel blends to handle modern fuels\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this primer bulb fit my fuel line and how easy is it to install?\u003c\/h3\u003e\n\u003cp\u003eFO-4279 is intended for fuel hoses with a 3\/8\" inside diameter and includes barb fittings sized for a snug fit. Installation is straightforward: cut the fuel line where needed, push the hose onto the barb, and tighten the supplied stainless-steel clamps for a leak-resistant connection.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDesigned for 3\/8\" ID fuel hose — common on many outboards and small craft\u003c\/li\u003e\n  \u003cli\u003eComes with barb connectors already attached to the bulb for convenience\u003c\/li\u003e\n  \u003cli\u003eStainless-steel hose clamps included to prevent leaks and corrosion\u003c\/li\u003e\n  \u003cli\u003eSimple inline replacement with no special tools required beyond pliers and a screwdriver\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs this primer bulb safe for ethanol and environmentally compliant?\u003c\/h3\u003e\n\u003cp\u003eThe bulb's low-permeation, multi-layer material is engineered to tolerate ethanol-blended fuels up to 85% and biodiesel formulations, helping reduce vapor loss and swelling that can degrade standard rubber. FO-4279 also meets EPA and CARB requirements, reflecting reduced emissions and regulatory compliance for vehicles and vessels operating in regulated areas.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible with gasoline up to 85% ethanol blends, diesel, and biodiesel\u003c\/li\u003e\n  \u003cli\u003eLow-permeation layers minimize harmful vapor release\u003c\/li\u003e\n  \u003cli\u003eEPA certified and CARB approved for compliant marine use\u003c\/li\u003e\n  \u003cli\u003eWeather- and UV-resistant construction supports long service life\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow long will this primer bulb last and what maintenance does it need?\u003c\/h3\u003e\n\u003cp\u003eMade from marine-grade materials, the FO-4279 is built to resist UV, weathering, and chemical attack from modern fuels, which extends useful life compared with standard single-layer bulbs. Periodic inspection for cracking, softening, or leaks is recommended; replacing the bulb at the first sign of deterioration prevents fuel delivery issues.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMulti-layer construction for improved durability and reduced permeation\u003c\/li\u003e\n  \u003cli\u003eUV- and weather-resistant for extended outdoor use\u003c\/li\u003e\n  \u003cli\u003eInspect clamps and hose connections annually or after heavy use\u003c\/li\u003e\n  \u003cli\u003eReplace immediately if you notice loss of prime, cracks, or leaks\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Five Oceans FO-4279 primer bulb is ideal for boat owners, mechanics, and marine rental operators who need a reliable, regulation-compliant inline primer bulb for 3\/8\" fuel hose. It suits vessels using modern ethanol-blended gasoline, diesel, or biodiesel, and anyone seeking a durable replacement that installs quickly and resists weather and fuel-related degradation.\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: Will this primer bulb work with ethanol-blended fuel?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. FO-4279 is compatible with gasoline up to 85% ethanol, diesel, and biodiesel blends.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does it include connectors and clamps for installation?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The bulb ships with barb-end connectors already attached and stainless-steel hose clamps.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Five Oceans","offers":[{"title":"Default Title","offer_id":55165896327511,"sku":"B0CT9745JB","price":39.45,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/five-oceans-fo4279-front-view.jpg?v=1790359482","url":"https:\/\/britishgarage.co.uk\/products\/five-oceans-3-8-fuel-line-primer-bulb-large-universal-outboard-primer-epa-carb-ethanol-compatible","provider":"British Garage","version":"1.0","type":"link"}