---
product_id: 295377376
title: "EVIL ENERGY 3/8\" Fuel Check Valve One Way Inline Non Return Diesel Gasoline Black(10mm OD,2PCS)"
brand: "evil energy"
price: "VT9802"
currency: VUV
in_stock: true
reviews_count: 5
category: "Evil Energy"
url: https://www.desertcart.vu/products/295377376-evil-energy-3-8-fuel-check-valve-one-way-inline
store_origin: VU
region: Vanuatu
---

# 6 bar max working pressure 3/8 inch (10mm) precision fit -22℉ to 266℉ wide temp range EVIL ENERGY 3/8" Fuel Check Valve One Way Inline Non Return Diesel Gasoline Black(10mm OD,2PCS)

**Brand:** evil energy
**Price:** VT9802
**Availability:** ✅ In Stock

## Summary

> 🚀 Lock in your fuel flow, unlock peak performance!

## Quick Answers

- **What is this?** EVIL ENERGY 3/8" Fuel Check Valve One Way Inline Non Return Diesel Gasoline Black(10mm OD,2PCS) by evil energy
- **How much does it cost?** VT9802 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/295377376-evil-energy-3-8-fuel-check-valve-one-way-inline)

## Best For

- evil energy enthusiasts

## Why This Product

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

## Key Features

- • **Precision Engineered Fit:** 3/8 inch (10mm) OD ensures seamless integration with standard fuel lines for hassle-free installation.
- • **Robust Pressure Handling:** Operates reliably up to 6 bar (87 psi), maintaining stable fuel flow under demanding conditions.
- • **One-Way Fuel Flow Assurance:** Innovative spring mechanism prevents backflow, ensuring quick starts and consistent engine performance every time.
- • **Corrosion-Resistant Durability:** Crafted from black anodized 6061-T6 aluminum alloy with stainless steel spring for long-lasting wear and rust protection.
- • **Extreme Temperature Resilience:** Performs flawlessly from -22℉ to 266℉, perfect for all-season, high-performance setups.

## Overview

The EVIL ENERGY 3/8" Fuel Check Valve is a high-strength, black anodized aluminum inline valve designed for carburetor and low-pressure fuel systems. Featuring a stainless steel spring for one-way flow, it prevents fuel backflow and maintains system pressure across a wide temperature range (-22℉ to 266℉) and pressures up to 6 bar. Compact and easy to install with barb fittings, it’s trusted by thousands for reliable, efficient fuel delivery in diesel, gasoline, and more.

## Description

EVIL ENERGY is our brand, we're a direct and professional manufacturer, one of greatest manufacturer and exporter in tuning parts include intake system, exhaust system, fuel system, cooling system, interior and exterior parts. Check valves are suitable for carburetor and low pressure fuel systems. The main function of the check valve in the system is to prevent backflow and keeping it in the line. It can greatly solve the problem of slow starting vehicles.

Review: Great Value
Review: Quality and correctly sized

## Features

- Specifications: 3/8 inch (10 mm) OD. Minimum upstream pressure: 0.2 bar (2.9 psi). Working pressure range: 0.2–6 bar (2.9–87 psi). Operating temperature range: -22℉ to 266℉ for reliable performance in various conditions.
- Material: Made of high-strength 6061-T6 aluminum alloy, the check valve is black anodized for enhanced corrosion and wear resistance.
- Feature: This EVIL ENERGY fuel line check valve is equipped with a stainless steel spring that allows fluid to flow in only one direction, effectively preventing fuel backflow and maintaining stable system pressure.
- Installation: The one way valve is compact and lightweight with barb inlet/outlet for quick, hassle-free setup in fuel lines.
- Application: The EVIL ENERGY fuel check valve is widely used in carburetor and low-pressure fuel systems. It is compatible with various media such as water, petrol, diesel, gas, oil, air, and other fluids.(Methanol is not recommended)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08JJ1F79D |
| Best Sellers Rank | #35,808 in Automotive ( See Top 100 in Automotive ) #5 in Automotive Check Valves |
| Brand | EVIL ENERGY |
| Brand Name | EVIL ENERGY |
| Connector Type | Barb |
| Customer Reviews | 4.5 out of 5 stars 2,870 Reviews |
| Exterior Finish | Stainless Steel |
| Exterior finish | Stainless Steel |
| Inlet Connection Size | 0.38 Inches |
| Inlet Connection Type | National Pipe Tapered |
| Inlet connection size | 0.38 Inches |
| Inlet connection type | National Pipe Tapered |
| Manufacturer | EVIL ENERGY |
| Material | Aluminum |
| Material Type | Aluminum |
| Maximum Pressure | 6 Bars |
| Model Number | EV01342S10BK |
| Number of Pieces | 2 |
| Number of Ports | 2 |
| Outlet Connection Size | 0.38 Inches |
| Outlet Connection Type | National Pipe Tapered |
| Outlet connection type | National Pipe Tapered |
| Size | 3/8 |
| Specification Met | ANSI B1.20.1, ANSI B16.11, ASME B16.34, ASTM, CSA, EPA, ISO 9001, ULC |
| Thread Size | 3/8 inch (10mm) |
| Thread Type | NPT |
| Unit Count | 2.0 Count |
| Valve Type | check valve |

## Product Details

- **Brand:** EVIL ENERGY
- **Exterior finish:** Stainless Steel
- **Inlet connection size:** 0.38 Inches
- **Inlet connection type:** National Pipe Tapered
- **Material:** Aluminum

## Images

![EVIL ENERGY 3/8" Fuel Check Valve One Way Inline Non Return Diesel Gasoline Black(10mm OD,2PCS) - Image 1](https://m.media-amazon.com/images/I/61jPaQBpZBL.jpg)
![EVIL ENERGY 3/8" Fuel Check Valve One Way Inline Non Return Diesel Gasoline Black(10mm OD,2PCS) - Image 2](https://m.media-amazon.com/images/I/71J7exyPZ6L.jpg)
![EVIL ENERGY 3/8" Fuel Check Valve One Way Inline Non Return Diesel Gasoline Black(10mm OD,2PCS) - Image 3](https://m.media-amazon.com/images/I/61IIS0R7FPL.jpg)
![EVIL ENERGY 3/8" Fuel Check Valve One Way Inline Non Return Diesel Gasoline Black(10mm OD,2PCS) - Image 4](https://m.media-amazon.com/images/I/71oTUMoC5HL.jpg)
![EVIL ENERGY 3/8" Fuel Check Valve One Way Inline Non Return Diesel Gasoline Black(10mm OD,2PCS) - Image 5](https://m.media-amazon.com/images/I/719xyD0rmEL.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Questions & Answers

**Q: Would this valve be effective in a air/vapor system?**
A: yes, the valve can works in air system

**Q: Can this be used on a submersible 600gph water pump for the basement?**
A: This is a small check valve used for something like allowing a vacuum to be pulled in a single direction.  It would not be appropriate for use with a fluid pump unless it is simply being used as part of a venting system to remove air from the pump prior to use.

**Q: Do you install before fuel pump or close to carburetor**
A: Hi, it depends on your application, it usually installs close to the tank but you can put it closer to the fuel pump if you want. in any event it goes before the fuel pump as your trying to stop flow back.

**Q: Will this fit to Mazda Protege 2.0? Reference: 8574-20-309**
A: This check valve will fit any 1/4 or 6mm fuel line.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great Value
*by A***R on 30 January 2026*



### ⭐⭐⭐⭐⭐ Quality and correctly sized
*by C***S on 20 January 2024*



### ⭐⭐⭐⭐⭐ Does exactly what it's supposed to do.
*by A***R on 23 February 2026*



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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-03-19*