---
product_id: 438305425
title: "EVIL ENERGY 1/2\" Fuel Check Valve One Way Inline Non Return Diesel Gasoline Black (12mm OD,2PCS)"
brand: "evil energy"
price: "$U1521"
currency: UYU
in_stock: true
url: https://www.desertcart.uy/products/438305425-evil-energy-1-2-fuel-check-valve-one-way-inline
store_origin: UY
region: Uruguay
---

# Stainless steel spring ensures one-way fuel flow Operates flawlessly from -22℉ to 266℉ 6061-T6 aluminum alloy for ultimate durability EVIL ENERGY 1/2" Fuel Check Valve One Way Inline Non Return Diesel Gasoline Black (12mm OD,2PCS)

**Brand:** evil energy
**Price:** $U1521
**Availability:** ✅ In Stock

## Summary

> 🔧 Keep your fuel flow flawless — because every drop counts!

## Quick Answers

- **What is this?** EVIL ENERGY 1/2" Fuel Check Valve One Way Inline Non Return Diesel Gasoline Black (12mm OD,2PCS) by evil energy
- **How much does it cost?** $U1521 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.uy](https://www.desertcart.uy/products/438305425-evil-energy-1-2-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

- • **All-Weather Warrior:** Operates seamlessly in extreme temperatures from -22℉ to 266℉, perfect for any climate or season.
- • **Plug-and-Play Installation:** Compact, lightweight design with barb inlet/outlet for quick, hassle-free setup — get back on the road faster.
- • **Precision Pressure Control:** Maintains stable fuel system pressure with a working range up to 6 bar (87 psi) — no backflow, no compromises.
- • **Versatile Fuel Compatibility:** Engineered for diesel, gasoline, petrol, water, oil, and air systems — your go-to valve for multiple applications.
- • **Built to Last, Ready to Perform:** Crafted from high-strength 6061-T6 aluminum with black anodized finish for unbeatable corrosion resistance.

## Overview

The EVIL ENERGY 1/2" Fuel Check Valve is a robust, black anodized aluminum inline valve designed to prevent fuel backflow in low-pressure systems. Featuring a stainless steel spring for reliable one-way flow, it operates efficiently across a wide temperature range (-22℉ to 266℉) and pressures up to 6 bar. Compact and easy to install, it supports multiple fuel types including diesel and gasoline, making it an essential upgrade for professional-grade fuel management.

## Description

Full description not available

## Features

- Specifications: 1/2 inch (12 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 |
|---------------|-------|
| Material | Aluminum |
| Brand | EVIL ENERGY |
| Item dimensions L x W x H | 3.94 x 0.79 x 0.79 inches |
| Exterior Finish | Stainless Steel |
| Inlet Connection Size | 0.5 Inches |
| Inlet Connection Type | National Pipe Tapered |
| Outlet Connection Type | National Pipe Tapered |
| Maximum Operating Pressure | 6 Bars |
| Number of Ports | 2 |
| Outlet Connection Size | 0.5 Inches |
| Manufacturer | Speedwow Tuning |
| Part Number | EV01342S12BK |
| Item Weight | 1.76 ounces |
| Product Dimensions | 3.94 x 0.79 x 0.79 inches |
| Item model number | EV01342S12BK |
| Size | 1/2 |
| Color | Black |
| Number Of Pieces | 2 |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Material:** Aluminum
- **Brand:** EVIL ENERGY
- **Item dimensions L x W x H:** 3.94 x 0.79 x 0.79 inches
- **Exterior Finish:** Stainless Steel
- **Inlet Connection Size:** 0.5 Inches
- **Inlet Connection Type:** National Pipe Tapered
- **Outlet Connection Type:** National Pipe Tapered
- **Maximum Operating Pressure:** 6 Bars
- **Number of Ports:** 2
- **Outlet Connection Size:** 0.5 Inches

## Images

![EVIL ENERGY 1/2" Fuel Check Valve One Way Inline Non Return Diesel Gasoline Black (12mm OD,2PCS) - Image 1](https://m.media-amazon.com/images/I/71Hg+Inh5eL.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.

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*Product available on Desertcart Uruguay*
*Store origin: UY*
*Last updated: 2026-02-07*