Fuel line recommendations

[ineedanother 1,829]

It's time to replace fuel lines on a couple machines and I didn't see anything recent with a search...looking for local (NAPA?) or other source for quality fuel line. I use E-0 and this would be for 300 and c-series. Thanks

[Retired Wrencher 6,284]

I have been using tractor supply made in USA hose for a few years now very happy with it well-made. Have a good day.

[sqrlgtr 1,840]

I have started using the j9 rated from any parts store but it is more $$$ and the j7 would probably be just fine here is some info I got from interweb... I dont like the looks of the clear fuel hose but know nothing about them

 

Based on SAE (Society of Automotive Engineers) standards for automotive fuel hoses, J30R6, J30R7, and J30R9 represent different grades of fuel hose, with significant differences in pressure rating, temperature resistance, and permeability. 

SAE J30R6 (J6)

• Application: Designed for low-pressure, carbureted fuel systems, emission systems, or fuel return lines.
• Suitability: Not recommended for modern fuel injection systems due to lower pressure limits. 

SAE J30R7 (J7)

• Application: A versatile, standard fuel hose designed for fuel systems (carbureted or low-pressure fuel injection) and emissions systems.
• Suitability: Suitable for under-the-hood applications. It has better heat and oil resistance than R6, but lower pressure ratings than R9. 

SAE J30R9 (J9)

• Application: Specifically designed for high-pressure fuel injection systems.
• Performance: Highly durable, with superior resistance to heat, pressure, and, most importantly, low permeation (fuel vapor escaping through the hose wall).
• Compatibility: Excellent for modern fuels, including ethanol blends. 

Key Differences Summary

• Pressure: J9 (highest) > J7 > J6 (lowest).
• Permeability: J9 is designed to prevent fuel vapors from escaping, making it more compliant with modern environmental standards compared to R7 or R6.
• Best Use: Use J9 for fuel-injected engines, J7 for carbureted/fuel return, and J6 for basic fuel transfer. 

[peter lena 9,654]

@ineedanother  great time to lay in a frame length  5/16  steel brake line , ? tucks right up into the  inside frame corner bend  , tie wrap or screw or  c clamp , finish ends with a clear fuel rated hose , use a swage lock  to hose barb connection . like a fuel filter  at tank flow start  , another  just before carb , also have  fuel check valves on my  units , yo can see the holding  fuel  to carb , did this fresh / clean set up  years ago , to eliminate what was there , also  started using , sta bil  in all my fuels then , just an ounce or two  , to any tank top off . zero hose break down , no debris in any carb bowl , that additive will  help maintain a clean / fresh hose . isn't that what you want ? been using this for years , with no issues , also a good time to  tune up your  choke / throttle  cables , using  hydraulic  super lube , temp specs verify  consistent slide, added , light  pull springs to  my  cables , to assist , close / stop  ? that way your movement is always spring assisted , another experiment , always works , evolution of change , pete