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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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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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
Material
Plastic
Colour
Yellow
Product Dimensions
152.4L x 1W
Item Weight
0.08 Kilograms
Nominal Wall Thickness
0.25 inch

🔍Translucent for flow monitoring

🌡️Wide temp range -35°F to 165°F

🛢️Fuel-grade Tygon tubing

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	#330,343 in Car & Motorbike ( See Top 100 in Car & Motorbike ) #89 in Lines & Hoses
Brand	Tarsons
Brand Name	Tarsons
Colour	Yellow
Customer Reviews	4.6 out of 5 stars 381 Reviews
Item Dimensions L x W	152.4L x 1W Centimeters
Item Length	60 Inches
Item Weight	0.08 Kilograms
Manufacturer	Saint-Gobain
Material	Plastic
Material Type	Plastic
Nominal Wall Thickness	0.25 inch
Outside Diameter	0.38 Inches
Product Dimensions	152.4L x 1W Centimeters
UPC	670628180929 769079144380
Unit Count	5 Feet

Reviews

J**N

Great high quality fuel line, perfect for refreshing old WaveRunner fuel hoses

3.01.2026

S**Z

Just what I needed

6.02.2024

J**K

Good quality fuel line.

24.01.2025

A**N

Best clear fuel hose

30.12.2022

P**S

Love this stuff.

5.08.2025

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