{"product_id":"sierra-368-marine-fuel-hose-3-8-in-x-50-ft-low-perm","title":"Sierra 368 Marine Fuel Feed Hose 3\/8 in x 50 ft Low Permeation","description":"\u003cp class=\"nvn-hero\"\u003eThe Sierra Series 368 is a low-permeation marine fuel feed hose in a 50 foot coil, 3\/8 inch inside diameter. It handles gasoline up to 85 percent ethanol, diesel, and biodiesel in every blend, and it's A1-15 certified so it keeps fuel vapor where it belongs. The hose you install once and forget about.\u003c\/p\u003e\n\n\u003cdiv class=\"nvn-description\"\u003e\n\u003cp\u003eIf you're re-plumbing a fuel system or just chasing down a soft, weeping old line, the Sierra Series 368 is the hose you want feeding your engine. It's a 3\/8 inch inside diameter marine fuel feed hose in a 50 foot coil, built for the stuff that actually runs through boat fuel systems today. Gasoline up to 85 percent ethanol. Diesel. Biodiesel in every blend. The lining is made to live with modern fuel without going soft or gummy on you.\u003c\/p\u003e\n\u003cp\u003eThe number that matters most here is low permeation. Older rubber fuel line lets fuel vapor seep right through the wall, which is bad for your nose, bad for the bilge, and these days it's against the rules. This hose is A1-15 certified, the low-permeation standard that meets EPA evaporative-emission requirements for marine fuel lines. So it keeps the fuel where it belongs and keeps you legal. The A1 part of that rating also means it's a fire-resistant construction, which is why it's approved for below-deck fuel lines where a plain hose isn't. The cover is black reinforced polyester, and it shrugs off fuel, oil, and the salt-and-heat abuse of a working engine bay.\u003c\/p\u003e\n\u003cp\u003eLet's talk pressure, because this is where people get tripped up. The 368 is rated to 100 PSI maximum. That's plenty for fuel feed and return lines running off a low-pressure lift pump or a primer bulb. It is not a high-pressure injection hose. If you're plumbing the high side of a modern EFI or common-rail diesel, you need dedicated high-pressure line, not this. Use the 368 where it belongs, on the supply and return side, and it'll outlast the boat.\u003c\/p\u003e\n\u003cp\u003eSizing is straightforward. The 3\/8 inch ID is the fuel path, and it slips over a standard 3\/8 inch barb. The 11\/16 inch OD is the outside of the hose, which is what you measure for clamp sizing and for figuring clearance through a tight bulkhead. One thing we've run into: some OEM tank nipples are sized a hair different, so dry-fit before you commit and grab the right barb adapter if you need one. Better to sort that at the bench than hanging upside down in a lazarette.\u003c\/p\u003e\n\u003cp\u003eA few install tips from doing this a bunch. Fifty feet of hose ships as a coil, and a cold coil can fight you on tight bilge runs. Warm it up first. A little time in the sun or a soak in warm water makes it far more willing to bend. Avoid sharp kinks, support long runs with cushioned clamps every foot or so, and double-clamp both ends on outboards and anywhere there's real vibration. That's cheap insurance against a fuel leak. And route the hose out of constant direct sunlight where you can, or sleeve it in split conduit. UV is the enemy of any hose cover over the long haul.\u003c\/p\u003e\n\u003cp\u003eFifty feet is generous. On a small runabout you'll have plenty left over, so cut what you need and store the remainder coiled flat so it doesn't take a permanent set. On a bigger inboard or a twin-engine rig, that length lets you do the whole fuel system in one shot with matching hose end to end. Pair it with a good 10-micron fuel-water separator and a primer bulb and you've got a clean, reliable feed that handles ethanol gas even when the engine compartment gets hot.\u003c\/p\u003e\n\u003cp\u003eWho's this for? Outboard owners replacing brittle old primer-bulb hose, inboard owners doing a proper fuel-system refresh, sailboat auxiliary diesels, and anyone who wants one hose that covers both the gas and diesel boats in the fleet. If you run ethanol pump gas, this is the line that stops the slow degradation you get from cheap hose. And if you keep a diesel, the same coil handles biodiesel blends without a second thought.\u003c\/p\u003e\n\u003cp\u003eSierra builds parts to meet or beat the original equipment they replace, and this hose is no exception. It's the kind of unglamorous gear you install once and forget about, which is exactly what you want from a fuel line. Backed by Sierra's limited two-year warranty and our authorized-dealer support if you ever need it.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul class=\"nvn-features\"\u003e\n  \u003cli\u003e3\/8 inch inside diameter and 11\/16 inch outside diameter, sized for standard marine fuel feed and return runs\u003c\/li\u003e\n  \u003cli\u003e50 foot continuous coil, enough for a full re-plumb or several shorter runs cut to fit\u003c\/li\u003e\n  \u003cli\u003eRated to 100 PSI maximum working pressure for low-pressure fuel feed and return lines\u003c\/li\u003e\n  \u003cli\u003eCompatible with gasoline up to 85 percent ethanol, diesel, and biodiesel in all blends\u003c\/li\u003e\n  \u003cli\u003eA1-15 low-permeation certified, meets EPA evaporative-emission requirements for marine fuel lines\u003c\/li\u003e\n  \u003cli\u003eType A fire-resistant construction, approved for below-deck fuel systems\u003c\/li\u003e\n  \u003cli\u003eReinforced polyester braid holds its shape and resists kinking under engine-bay heat\u003c\/li\u003e\n  \u003cli\u003eBlack cover stands up to fuel, oil, salt, and vibration\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 fuels can this hose handle?\u003c\/summary\u003e\n    \u003cp\u003eGasoline up to 85 percent ethanol, diesel, and biodiesel in all blends. The low-permeation lining is built for modern fuels, so ethanol gas won't degrade it the way it eats cheap rubber line.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eCan I use this on a high-pressure fuel injection line?\u003c\/summary\u003e\n    \u003cp\u003eNo. The 368 is rated to 100 PSI maximum, which covers fuel feed and return lines off a low-pressure lift pump or primer bulb. For the high side of an EFI or common-rail diesel you need dedicated high-pressure injection hose.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat's the difference between the 3\/8 inch and 11\/16 inch measurements?\u003c\/summary\u003e\n    \u003cp\u003e3\/8 inch is the inside diameter, the actual fuel path, and it slips over a standard 3\/8 inch barb. 11\/16 inch is the outside diameter, which you use for clamp sizing and for checking clearance through a tight bulkhead.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs it certified for low permeation and legal to use?\u003c\/summary\u003e\n    \u003cp\u003eYes. It's A1-15 certified, the low-permeation classification that meets EPA evaporative-emission requirements for marine fuel lines. The A1 rating also means fire-resistant construction for below-deck use.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow do I keep it from kinking on tight runs?\u003c\/summary\u003e\n    \u003cp\u003eWarm the coil before installing, a little sun or a soak in warm water makes it far more flexible. Avoid sharp bends, and support long runs with cushioned clamps roughly every foot.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eShould I double-clamp the connections?\u003c\/summary\u003e\n    \u003cp\u003eOn outboards and anywhere there's real engine vibration, yes. Two clamps at each fitting is cheap insurance against a fuel leak working loose over time.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWill 50 feet be too much for my boat?\u003c\/summary\u003e\n    \u003cp\u003eOn a small runabout you'll likely have plenty left over. Cut what you need and store the remainder coiled flat so it doesn't take a permanent set. On a larger inboard or twin-engine boat, 50 feet lets you plumb the whole system with matching hose.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow do I make it last?\u003c\/summary\u003e\n    \u003cp\u003eKeep it out of constant direct sunlight where you can, or sleeve it in split conduit. UV is what shortens the life of any hose cover, so a little shade goes a long way.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat fittings does it use?\u003c\/summary\u003e\n    \u003cp\u003eThe 3\/8 inch ID fits a standard 3\/8 inch barb. Some OEM tank nipples run a slightly different size, so dry-fit first and pick up the right barb adapter if needed.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat's the warranty?\u003c\/summary\u003e\n    \u003cp\u003eSierra backs it with a limited two-year warranty. We're an authorized Sierra dealer, so any warranty question runs through us.\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\u003eSierra Series 368 Low Permeation Marine Fuel Feed Hose\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\u003e16-368-0386\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eUPC\u003c\/th\u003e\n\u003ctd\u003e808282266318\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003e368\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eApplication\u003c\/th\u003e\n\u003ctd\u003eFuel Feed\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eFuel Compatibility\u003c\/th\u003e\n\u003ctd\u003eGasoline up to 85% ethanol, diesel, biodiesel (all blends)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eLength\u003c\/th\u003e\n\u003ctd\u003e50 ft\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eInside Diameter\u003c\/th\u003e\n\u003ctd\u003e3\/8 in\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eOutside Diameter\u003c\/th\u003e\n\u003ctd\u003e11\/16 in\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eMaximum Pressure\u003c\/th\u003e\n\u003ctd\u003e100 PSI\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003ePermeation Rating\u003c\/th\u003e\n\u003ctd\u003eA1-15 Low Permeation Certified\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eReinforcement\u003c\/th\u003e\n\u003ctd\u003eReinforced Polyester\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eColor\u003c\/th\u003e\n\u003ctd\u003eBlack\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 fuels can this hose handle?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Gasoline up to 85 percent ethanol, diesel, and biodiesel in all blends. The low-permeation lining is built for modern fuels, so ethanol gas won't degrade it the way it eats cheap rubber line.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Can I use this on a high-pressure fuel injection line?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"No. The 368 is rated to 100 PSI maximum, which covers fuel feed and return lines off a low-pressure lift pump or primer bulb. For the high side of an EFI or common-rail diesel you need dedicated high-pressure injection hose.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What's the difference between the 3\/8 inch and 11\/16 inch measurements?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"3\/8 inch is the inside diameter, the actual fuel path, and it slips over a standard 3\/8 inch barb. 11\/16 inch is the outside diameter, which you use for clamp sizing and for checking clearance through a tight bulkhead.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Is it certified for low permeation and legal to use?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Yes. It's A1-15 certified, the low-permeation classification that meets EPA evaporative-emission requirements for marine fuel lines. The A1 rating also means fire-resistant construction for below-deck use.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"How do I keep it from kinking on tight runs?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Warm the coil before installing, a little sun or a soak in warm water makes it far more flexible. Avoid sharp bends, and support long runs with cushioned clamps roughly every foot.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Should I double-clamp the connections?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"On outboards and anywhere there's real engine vibration, yes. Two clamps at each fitting is cheap insurance against a fuel leak working loose over time.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Will 50 feet be too much for my boat?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"On a small runabout you'll likely have plenty left over. Cut what you need and store the remainder coiled flat so it doesn't take a permanent set. On a larger inboard or twin-engine boat, 50 feet lets you plumb the whole system with matching hose.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"How do I make it last?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Keep it out of constant direct sunlight where you can, or sleeve it in split conduit. UV is what shortens the life of any hose cover, so a little shade goes a long way.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What fittings does it use?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"The 3\/8 inch ID fits a standard 3\/8 inch barb. Some OEM tank nipples run a slightly different size, so dry-fit first and pick up the right barb adapter if needed.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What's the warranty?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Sierra backs it with a limited two-year warranty. We're an authorized Sierra dealer, so any warranty question runs through us.\"\n            }\n        }\n    ]\n}\n\u003c\/script\u003e\n","brand":"Sierra Marine","offers":[{"title":"Default Title","offer_id":45061213061213,"sku":"2008545","price":98.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/files\/ImageServerAPI_4b66bfdb-2539-41b1-a7df-b0f11482dffc.jpg?v=1789544975","url":"https:\/\/nvnmarine.com\/products\/sierra-368-marine-fuel-hose-3-8-in-x-50-ft-low-perm","provider":"NVN Marine","version":"1.0","type":"link"}