Is this fuel hose submersible? Can it withstand laying inside the gas tank?

Yes. It will not swell like rubber hose. I have it submerged in a Farris zero turn. No problems so far.

Genuine tygon tubing is branded all along the length, can anyone tell me what the tubing says?

"SAINT-GOBAIN Tygon (R) F-4040-A" is inkjet printed in white every foot or so on the yellow tubing.

will this connect to an 5/16 npt thread?

No the 1/4 ID hose will not fit over 5/16 pipe. You will need to go to ACE and in the brass plumbing section get adapter and 1/4 hose barb

I'm guessing you need a 9mm i.d. clamp? or 8mm clamp?because you'd want to squeeze it to something just under 3/8"?

I used a 1/4” worm drive clamp with no issues

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OEM Tygon F-4040-A Premium Cut Length Fuel Line 1/4" ID X 3/8" OD X 5' Feet

OEM Tygon F-4040-A Premium Cut Length Fuel Line 1/4" ID X 3/8" OD X 5' Feet

Product ID: 667287750

Details

Brand
Tarsons
Colour
Yellow
Item Length
60 Inches
Item Weight
0.08 Kilograms
Manufacturer
Saint-Gobain
Material
Plastic

🔍Translucent for flow monitoring

🌡️Wide temp range -35°F to 165°F

🛢️Fuel-grade Tygon tubing

¥9862

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Description

🛠️ Upgrade your fuel line game with clarity and durability!

FLEXIBLE YET DURABLE - Soft 57A durometer rating ensures easy bending without kinks, perfect for tight engine bays.
VISUAL FLOW ASSURANCE - Translucent yellow tubing lets you monitor fluid flow and quickly identify fuel lines at a glance.
PREMIUM FUEL COMPATIBILITY - Engineered to resist swelling and embrittlement from gasoline, kerosene, and heating oils.
TRUSTED SAINT GOBAIN QUALITY - Genuine OEM Tygon F-4040-A tubing, a top choice for professionals refreshing or upgrading fuel systems.
EXTREME TEMPERATURE RESILIENCE - Operates flawlessly from freezing -35°F to scorching 165°F without losing flexibility.

The OEM Tygon F-4040-A Premium Cut Length Fuel Line is a 5-foot, 1/4" ID by 3/8" OD translucent yellow tubing designed for fuel and lubricant transfer. Made from genuine Saint-Gobain Tygon formulation, it resists chemical degradation from hydrocarbons and withstands temperatures from -35°F to 165°F. Its flexibility and visual flow monitoring make it ideal for professional-grade engine and fuel system maintenance.

Specifications

ASIN	B07H3ZL5QY
Best Sellers Rank	#454,535 in Car & Motorbike ( See Top 100 in Car & Motorbike ) #219 in Lines & Hoses
Brand Name	Tarsons
Colour	Yellow
Country of Publication	USA
Customer Reviews	4.7 4.7 out of 5 stars (404)
Item Dimensions L x W	152.4L x 1W Centimeters
Item Length	60 Inches
Item Weight	0.08 Kilograms
Manufacturer	Saint-Gobain
Material Type	Plastic
Nominal Wall Thickness	0.25 inch
Outside Diameter	0.38 Inches
UPC	670628180929 769079144380
Unit Count	5 Feet

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TrustScore 4.5 | 7,300+ reviews

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Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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The product exactly matches the description. Very satisfied with my purchase.

5 days ago

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¥9862

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Japan.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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The MOLLE sheath is of exceptional quality. Very happy with my purchase.

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