Table of Contents
What is the difference between A1 and A2 fuel hose?
Hose used for diesel supply and return applications must carry an A1 rating, while fill and vent installations call for hose designated as A2 (A1 is acceptable for fill and vent hose, however, A2 hose should not be used for anything other than fill or vent applications as it’s not designed to be continuously filled …
What is USCG approved fuel line?
MPI Fuel Hose USCG Type A This premium quality fire-retardant fuel hose meets or exceeds all requirements of new ISO 7840 and SAE J5127 standards required by USCG, ABYC and NMMA. Inner tube material provides extraordinary resistance to gasoline, diesel and alcohol-enhanced fuels.
What is marine grade fuel hose?

These are specifically designed and branded for use in supplying fuel to motors in boats or marine vessels. USCG Type A1 hoses are designed for fuel feed applications where the fuel is constantly in the hose, whereas Type A2 hoses are designed for fuel fill type hoses only.
What is Type B fuel hose?
Type B means that the hose is not fire retardant and intended for use in non-enclosed spaces. Type 1-15 means that the hose has a permeation rate under 15 g/m² within 24 hours, 1-15 is required by the EPA for all boats built 2010 or later and any portable fuel system.
Is marine fuel hose different?
Marine-grade fuel hose is much heavier than the same inside-diameter hose as used in automotive applications. This is done as part of its fire or flame testing, a requirement under the regulations. All fuel hose used in engine room spaces on board gasoline-fueled boats must meet a 2.5-minute fire test rating.

What’s the difference between marine fuel line and regular fuel line?
As I understand, one big difference is better UV resistance in the marine fuel line. Automotive fuel line gets a virtually no exposure to direct daylight, so little to no need for UV protection. Another possible difference is better flame resistance in the marine fuel line.
Is there a difference between marine fuel line and auto fuel line?
What size is Mercury outboard fuel line?
Mercury/Mariner O/B Standard Fuel Line Assembly, 6′ x 3/8″
Compatibility | 93806BLP7 |
---|---|
Inside Diameter | 3/8 Inch |
Outside Diameter | 11/16 Inch |
Maximum Continuous Length | 6 Foot |
Type | Fuel Tank Lines |
Is marine fuel line different than automotive fuel line?
How long does marine fuel line last?
The EPA defines useful life as 10 years for boat fuel system components and five years for PWC fuel systems.
What is B1 fuel?
Trident Barrier Lined B1-15 Fuel Hose is an EPA Approved fuel line for both gasoline and diesel. Designed for both gasoline (Petrol) (Including ethanol blends up to E85) and diesel (Including bio diesel blends up to 100%) Built with best fuel and age resistant formulation.
What size is outboard motor fuel line?
Still allowing the proper amount of fuel to get to the engine without having any problems. Of course, the 3/8″ fuel line will work for any of the outboards. But most smaller outboards have fittings or quick connects on them that are set for a 5/16″ hose. It’s basically the standard hose for the smaller engines.
How long do rubber fuel hoses last?
At vw-resource.com he recommends replacing it every 5 years. rubber line about every five years.
How long do nylon fuel lines last?
10,000 to 50,000 miles
Each time the car cranks and runs, the fuel hoses will have transport the fuel to the combustion chamber. These hoses can last anywhere from 10,000 to 50,000 miles depending on what they are made of.
What kind of hose is safe for gasoline?
SAE 30R10 Submersible Hose Submersible hose is specifically designed for use in fuel tanks. You’ll typically find it on in-tank fuel pump modules. It has special layers that prevent the inner liner from becoming saturated with fuel.
What PSI is fuel hose rated for?
Working pressure is not relevant, but wire-inserted hose can withstand 50-85 psi, depending on diameter. High-pressure fuel hose for clamp-type fuel-injection systems is also available. This fuel hose is SAE 30R9-rated and uses a fluoro elastomer inner liner that will withstand up to 180 psi and 300 degrees.