{"product_id":"five-oceans-fuel-line-primer-bulb-for-outboard-motors-large-3-8-ethanol-compatible-epa-carb-approved","title":"Five Oceans Fuel Line Primer Bulb for Outboard Motors — Large 3\/8\" Ethanol-Compatible, EPA\/CARB Approved","description":"\u003cp\u003e\u003cstrong\u003eThe Five Oceans FO-4279 is a large 3\/8-inch universal primer bulb that reliably primes outboard fuel lines and meets EPA and CARB low-permeation standards.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eDesigned for small boats and outboard motors, this primer bulb delivers a strong, leak-resistant feed to help start engines quickly. It includes barb-end connectors and stainless-steel hose clamps so you can install it on 3\/8\" inside-diameter fuel hose right away. Built with multi-layer, marine-grade materials, the FO-4279 resists weathering, UV exposure, and ethanol fuel permeation up to E85 blends.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this primer bulb help when starting a boat engine?\u003c\/h3\u003e\n\u003cp\u003eThe FO-4279 creates suction and pushes fuel from the tank to the carburetor or fuel pump, reducing cranking time and avoiding dry starts. Its large bulb volume speeds fuel flow, and the one-way valves maintain prime between uses.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFast priming action for quicker engine starts\u003c\/li\u003e\n  \u003cli\u003eOne-way valve design prevents fuel backflow\u003c\/li\u003e\n  \u003cli\u003eLarge 3\/8\" bore handles higher flow demands\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs this primer bulb compatible with modern fuels and regulations?\u003c\/h3\u003e\n\u003cp\u003eYes — the FO-4279 is EPA certified and CARB approved for low-permeation emissions requirements. The multilayer rubber construction is formulated to tolerate gasoline blended with up to 85% ethanol (E85), diesel, and biodiesel blends without premature deterioration.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eEPA-certified and CARB-approved for compliant use\u003c\/li\u003e\n  \u003cli\u003eCompatible with gasoline, E85, diesel, and biodiesel blends\u003c\/li\u003e\n  \u003cli\u003eLow-permeation materials reduce evaporative emissions\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat’s included and how simple is installation?\u003c\/h3\u003e\n\u003cp\u003eThe package ships ready for retrofit: an assembled primer bulb fitted with barb-style hose connectors and pre-attached stainless-steel hose clamps. Installation requires only cutting your 3\/8\" fuel hose to length, sliding the clamps into place, and tightening with a screwdriver.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eComes with barb end connectors already attached\u003c\/li\u003e\n  \u003cli\u003eStainless-steel clamps included for a corrosion-resistant seal\u003c\/li\u003e\n  \u003cli\u003eFits 3\/8\" inside-diameter marine fuel hose; tool-required: screwdriver\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow durable is the FO-4279 in marine conditions?\u003c\/h3\u003e\n\u003cp\u003eConstructed from multi-layer marine-grade rubber, the FO-4279 resists UV degradation, salt spray, and general weathering common to boating environments. Low-permeation inner layers limit fuel vapor escape while outer layers protect against abrasions and hardening.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eUV- and weather-resistant exterior for long service life\u003c\/li\u003e\n  \u003cli\u003eMulti-layer design minimizes fuel permeation and swelling\u003c\/li\u003e\n  \u003cli\u003eStainless-steel clamps resist rust in saltwater use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? The Five Oceans FO-4279 primer bulb is aimed at boat owners, marine technicians, and DIYers needing a compliant, ethanol-tolerant fuel-priming solution for outboard motors and portable engines. If you run a small to medium outboard, repair fuel lines, or outfit boats used in regulated areas, this ready-to-install, durable primer bulb offers a practical upgrade to maintain reliable starting and reduce fuel vapors.\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 E85 fuel?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The FO-4279 is compatible with gasoline blended up to 85% ethanol (E85) and with diesel and biodiesel blends.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What hose size does this primer bulb fit?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It fits fuel hose with a 3\/8-inch inside diameter and includes barb connectors and clamps for installation.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Five Oceans","offers":[{"title":"Default Title","offer_id":48085612298398,"sku":"B0CT9745JB","price":40.85,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/five-oceans-front-packaging-fo4279.jpg?v=1785874286","url":"https:\/\/northtrailauto.ca\/products\/five-oceans-fuel-line-primer-bulb-for-outboard-motors-large-3-8-ethanol-compatible-epa-carb-approved","provider":"North Trail Auto","version":"1.0","type":"link"}