---
product_id: 803442339
title: "3/8\" Fuel One Way Check Valve Inline Non Return, Aluminium Alloy Fuel Line Check Valve for Fuel Line Diesel Gasoline Water, Black (10mm OD,2PCS)"
brand: "hibuyer"
price: "€ 10.39"
currency: EUR
in_stock: true
reviews_count: 8
category: "Hi Buyer"
url: https://www.desertcart.at/products/803442339-3-8-fuel-one-way-check-valve-inline-non-return
store_origin: AT
region: Austria
---

# 6 bar max pressure for robust fuel flow 3/8 inch (10mm) OD precision fit -22℉ to 266℉ wide temp range 3/8" Fuel One Way Check Valve Inline Non Return, Aluminium Alloy Fuel Line Check Valve for Fuel Line Diesel Gasoline Water, Black (10mm OD,2PCS)

**Brand:** hibuyer
**Price:** € 10.39
**Availability:** ✅ In Stock

## Summary

> 🚀 Lock in fuel flow, unlock peak performance!

## Quick Answers

- **What is this?** 3/8" Fuel One Way Check Valve Inline Non Return, Aluminium Alloy Fuel Line Check Valve for Fuel Line Diesel Gasoline Water, Black (10mm OD,2PCS) by hibuyer
- **How much does it cost?** € 10.39 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/803442339-3-8-fuel-one-way-check-valve-inline-non-return)

## Best For

- hibuyer enthusiasts

## Why This Product

- Trusted hibuyer brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Versatile Compatibility:** Perfect for gasoline, diesel, water, and oil in automotive, marine, RV, and motorcycle fuel systems.
- • **Compact & Lightweight Design:** Effortless installation inline with clear directional arrow—get back on the road faster.
- • **Corrosion-Resistant Aluminum Alloy:** Black anodized finish ensures durability and sleek style under any condition.
- • **Reliable Under Pressure & Temperature:** Operates flawlessly from freezing cold to scorching heat, handling up to 6 bars of pressure.
- • **One-Way Fluid Control with Stainless Steel Spring:** Prevents costly fuel backflow, protecting your engine’s performance and safety.

## Overview

This 3/8" Fuel One Way Check Valve features a durable black anodized aluminum alloy body with a T304 stainless steel spring and nitrile rubber seal to ensure one-way fuel flow. Designed for pressures up to 6 bars and temperatures from -22℉ to 266℉, it prevents backflow in gasoline, diesel, water, and oil systems. Compact and easy to install, it’s ideal for automotive, marine, RV, and motorcycle fuel lines, delivering reliable, leak-free operation every time.

## Description

Buy 3/8" Fuel One Way Check Valve Inline Non Return, Aluminium Alloy Fuel Line Check Valve for Fuel Line Diesel Gasoline Water, Black (10mm OD,2PCS): Check Valves - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Value - Fit and does what it shoud
Review: Small Part, Big Help for Preventing Fuel Backflow - These inline one way fuel check valves are simple little components that do exactly what they are supposed to do. If you are dealing with fuel drain back, loss of prime, or pressure issues in a low pressure system, these are an easy and effective solution. The aluminum construction feels solid and well finished. They are lightweight but not flimsy, and the anodized coating looks like it will hold up well against corrosion. The internal spring and seal work smoothly, allowing flow in the correct direction and stopping it cleanly when it needs to. Installation is quick and straightforward. Just pay attention to the arrow direction and slip them into place. The 12mm size fit properly on standard 1/2 inch lines, and once clamped, they stayed secure without leaks. They work well for fuel systems using gasoline or diesel, and they are also useful for other low pressure applications like water or air. Performance has been consistent, with no sticking or hesitation, and they have held pressure reliably since installation. Value for money is good, especially since you get two valves in the pack. It is always nice to have a spare on hand, or to use them in multiple locations if needed. The only reason this is not a full five stars is that these are meant for low pressure systems only, so they are not suitable for every application. As long as you use them within the specified pressure range, they do their job well. Overall, these check valves are simple, durable, and effective. They solve a common problem without adding complexity. Would I recommend them? Yes. If you need a reliable inline check valve for fuel or other low pressure systems, these are a solid option that work as advertised.

## Features

- 【Durable Material】Made of high-quality aluminum alloy with black anodized finish, offering corrosion resistance for stable operation under various conditions.
- 【One Way Fluid Control】Features a T304 stainless steel spring and nitrile rubber seal to ensure one-way fluid flow, effectively preventing fuel backflow. This safeguards the fuel system from leaks or pressure loss, enhancing stability and safety.
- 【Product Specifications】Outer diameter: 3/8 inch (8 mm). Working pressure range: 0.2–6 bar / 2.9–87 psi. Operating temperature range: -22℉ to 266℉, ensuring reliable performance under diverse conditions.
- 【Wide Applicability】Suitable for automotive, marine, RV, motorcycle, and low-pressure fuel systems. Compatible with gasoline, diesel, water, oil, and air (not for methanol or acidic/alkaline fluids).
- 【Easy Installation】Compact and lightweight design. Quickly installs on fuel lines following the arrow direction.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0FZHXBNV5 |
| Best Sellers Rank | #98,882 in Automotive ( See Top 100 in Automotive ) #9 in Automotive Replacement Exhaust Check Valves |
| Brand | HiBuyer |
| Brand Name | HiBuyer |
| Customer Reviews | 3.8 out of 5 stars 26 Reviews |
| Exterior Finish | Black Anodized Aluminum |
| Included Components | 2PCS Fuel One Way Check Valve |
| Item Dimensions | 4 x 4 x 1 inches |
| Item dimensions L x W x H | 4 x 4 x 1 inches |
| Manufacturer | HiBuyer |
| Material | Aluminum |
| Material Type | Aluminum |
| Maximum Operating Pressure | 6 bar |
| Maximum Pressure | 6 bar |
| Model Number | MG CV |
| Number of Items | 2 |
| Number of Pieces | 2 |
| Set Name | 3/8" Fuel Check Valve Set (2 Piece) |
| Size | 3/8''(10mm) |
| Thread Size | 3/8" |
| Unit Count | 2 Count |
| Valve Type | Check Valve |

## Images

![3/8" Fuel One Way Check Valve Inline Non Return, Aluminium Alloy Fuel Line Check Valve for Fuel Line Diesel Gasoline Water, Black (10mm OD,2PCS) - Image 1](https://m.media-amazon.com/images/I/71NzB9o6ZEL.jpg)
![3/8" Fuel One Way Check Valve Inline Non Return, Aluminium Alloy Fuel Line Check Valve for Fuel Line Diesel Gasoline Water, Black (10mm OD,2PCS) - Image 2](https://m.media-amazon.com/images/I/71FzDb8suYL.jpg)
![3/8" Fuel One Way Check Valve Inline Non Return, Aluminium Alloy Fuel Line Check Valve for Fuel Line Diesel Gasoline Water, Black (10mm OD,2PCS) - Image 3](https://m.media-amazon.com/images/I/71NLvEcbO-L.jpg)
![3/8" Fuel One Way Check Valve Inline Non Return, Aluminium Alloy Fuel Line Check Valve for Fuel Line Diesel Gasoline Water, Black (10mm OD,2PCS) - Image 4](https://m.media-amazon.com/images/I/71edB2mvoTL.jpg)
![3/8" Fuel One Way Check Valve Inline Non Return, Aluminium Alloy Fuel Line Check Valve for Fuel Line Diesel Gasoline Water, Black (10mm OD,2PCS) - Image 5](https://m.media-amazon.com/images/I/71cnPkn+6BL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Value
*by J***N on July 29, 2026*

Fit and does what it shoud

### ⭐⭐⭐⭐⭐ Small Part, Big Help for Preventing Fuel Backflow
*by S***S on March 22, 2026*

These inline one way fuel check valves are simple little components that do exactly what they are supposed to do. If you are dealing with fuel drain back, loss of prime, or pressure issues in a low pressure system, these are an easy and effective solution. The aluminum construction feels solid and well finished. They are lightweight but not flimsy, and the anodized coating looks like it will hold up well against corrosion. The internal spring and seal work smoothly, allowing flow in the correct direction and stopping it cleanly when it needs to. Installation is quick and straightforward. Just pay attention to the arrow direction and slip them into place. The 12mm size fit properly on standard 1/2 inch lines, and once clamped, they stayed secure without leaks. They work well for fuel systems using gasoline or diesel, and they are also useful for other low pressure applications like water or air. Performance has been consistent, with no sticking or hesitation, and they have held pressure reliably since installation. Value for money is good, especially since you get two valves in the pack. It is always nice to have a spare on hand, or to use them in multiple locations if needed. The only reason this is not a full five stars is that these are meant for low pressure systems only, so they are not suitable for every application. As long as you use them within the specified pressure range, they do their job well. Overall, these check valves are simple, durable, and effective. They solve a common problem without adding complexity. Would I recommend them? Yes. If you need a reliable inline check valve for fuel or other low pressure systems, these are a solid option that work as advertised.

### ⭐⭐⭐⭐ Really good
*by J***L on July 3, 2026*

One worked really well the other was broken upon arrival but I only needed one sor it was great

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---

*Product available on Desertcart Austria*
*Store origin: AT*
*Last updated: 2026-09-09*