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2-Piece 1/4″ Aluminum Fuel Check Valve Kit with Clamps

$3.85 on Amazon.com (as of October 17, 2026, 1:43 PM EST) View details ↗

Maintain consistent fuel pressure and prevent backflow in your vehicle's fuel system with this YSFER 2-piece one-way check valve kit. Constructed from high-strength aluminum alloy, these valves are designed to resist deformation and withstand fuel erosion, ensuring long-term durability and reliable performance. The package includes two check valves and four stainless steel clamps, providing a complete solution for securing hose connections in various fuel, oil, and water applications.

Designed for precision and ease of installation, each valve features barbed fittings on both the inlet and outlet to guarantee a secure connection that remains tight even under vibration. A clearly marked arrow on the valve body indicates the direction of flow, allowing for quick and accurate orientation during setup. The included stainless steel clamps are adjustable and highly corrosion-resistant, offering a robust seal that protects against leaks when exposed to fuel for extended periods. This universal fit design is compatible with hose diameters ranging from 6mm to 12mm (0.24″ to 0.47″), making it a versatile addition to your automotive toolkit.

These check valves are essential for preventing fuel from flowing back into the tank when the engine is off, which helps protect the fuel pump and drive motor from reversing. Ideal for use in cars, motorcycles, boats, and helicopters, they are suitable for transporting gasoline, diesel, engine oil, and water. Note that these valves are not intended for use with methanol. With their rustproof construction and practical design, these YSFER check valves provide a dependable solution for maintaining the integrity of low-pressure fuel systems and carburetor setups.

MaterialAluminum Alloy, Stainless Steel
Valve Port Diameter0.24″, 0.31″, 0.39″, 0.47″
Weight0.13 lb
Size0.85 × 0.85 × 2.43 inches
Clamp Size1.09 × 0.31 × 0.84 inches
Package Contents2 Check Valves, 4 Clamps
What types of fluids are compatible with these check valves?
These valves are suitable for gasoline, diesel, engine oil, and water, but they are not intended for use with methanol.
How does the valve indicate the correct installation direction?
An arrow marked on the valve body clearly indicates the flow direction to facilitate accurate installation.
What is the primary function of this one-way check valve?
It restricts fuel from flowing back into the tank and keeps fuel in the line when the engine is off to prevent pump reversal.
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