There is only one lower 0-ring. There is an upper one with the check valve. Typically the lower one needs replaced if the coupler is leaking.

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EFI Check Valve Lower O-Ring

Q: What size in millimetres is the lower o ring for the Harley check valve?

As someone who has tried to replace the o-rings both with and without this tool, i will recommend whenever possible to just replace the whole assembly, hose and all with the oem part. save yourself the hassle.

Q: where is the product made? thanks.

The tag and card inside have no info. Maybe if you go to fueltool.com you can find the answer.

Product ID: 304059428

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Details

Material
Viton
Brand
Fuel-Tool
Colour
black
Temperature range
-4E+1 Degrees
UPC
857266003012

🔥Temperature range up to 40°C for reliable performance

⚙️Precision fit for multiple Harley Davidson models

🛡️Viton material for superior chemical resistance

Description

🛠️ Upgrade your ride’s heart with precision Viton power!

EASY INSTALLATION - Designed for seamless integration with OEM parts, minimizing downtime.
COST SAVING PRECISION - Replace just the O-ring, avoiding expensive valve and fuel line replacements.
LIGHTWEIGHT EFFICIENCY - At just 4.54 grams, it delivers high performance without bulk.
TAILORED COMPATIBILITY - Fits a wide range of Harley Davidson fuel-injected models from 2001 to 2020.
ENGINEERED FOR ENDURANCE - Crafted from DuPont Viton, ensuring unmatched durability and chemical resistance.

The EFI Check Valve Lower O-Ring by Fuel-Tool is a high-performance replacement part made from DuPont Viton, offering exceptional chemical and temperature resistance. Designed specifically for Harley Davidson fuel-injected models (2001-2020), it enables cost-effective maintenance by replacing only the O-ring instead of the entire valve or fuel line. Lightweight and easy to install, this O-ring ensures reliable fuel system integrity and longevity.

Specifications

Manufacturer	Fuel-Tool
Part number	MC200-5
Item Weight	4.54 g
Product Dimensions	11.43 x 7.62 x 0.51 cm; 4.54 g
Item model number	MC200-5
Color	black
Material	Viton
Item Package Quantity	1
Temperature Range	-4E+1 Degrees Celsius
Included components	Fuel Tool MC200-5
Batteries Included?	No
Batteries Required?	No

Have a Question? See What Others Asked

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where is the product made? thanks.

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