--- product_id: 235340688 title: "EVIL ENERGY 3/8\" Fuel Check Valve One Way Inline Non Return Diesel Gasoline Black (10mm OD,2PCS)" brand: "evil energy" price: "€ 31.60" currency: EUR in_stock: true reviews_count: 13 category: "Evil Energy" url: https://www.desertcart.be/products/235340688-evil-energy-3-8-fuel-check-valve-one-way-inline store_origin: BE region: Belgium --- # 6 bar max pressure endurance 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:** € 31.60 **Availability:** ✅ In Stock ## Summary > 🚀 Lock in your fuel flow, unlock peak engine power! ## 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?** € 31.60 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/235340688-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 - • **All-Weather Performance:** Withstands extreme temperatures from -22℉ to 266℉, perfect for any climate or engine condition. - • **Precision Engineered Fit:** 3/8 inch (10mm) OD ensures seamless integration with standard fuel lines for hassle-free installation. - • **Unyielding Pressure Control:** Operates reliably up to 6 bar (87 psi), maintaining stable fuel flow and preventing costly backflow. - • **Versatile Fuel Compatibility:** Ideal for diesel, gasoline, petrol, water, oil, and air systems—your go-to valve for diverse applications. - • **Durable & Corrosion-Resistant:** Crafted from black anodized 6061-T6 aluminum alloy with stainless steel spring for long-lasting, wear-resistant use. ## Overview The EVIL ENERGY 3/8" Fuel Check Valve is a robust, high-performance inline non-return valve designed for diesel and gasoline systems. Made from premium black anodized 6061-T6 aluminum with a stainless steel spring, it ensures one-way fuel flow, preventing backflow and maintaining system pressure. Rated for pressures up to 6 bar and temperatures from -22℉ to 266℉, it offers reliable operation across diverse environments. Compact and easy to install with barb connectors, this valve is a trusted choice for carburetor and low-pressure fuel systems. ## Description Buy EVIL ENERGY 3/8" Fuel Check Valve One Way Inline Non Return Diesel Gasoline Black (10mm OD,2PCS): Vacuum Tee Connectors - desertcart.com ✓ FREE DELIVERY possible on eligible purchases Review: Works as intended. - My zero turn would crank a little longer than I thought it should before it would start. I suspected the fuel was siphoning back to the tank after shutdown. This was cheap and easy to install so why not give it a try. Glad I did. Much better now. Review: They Work Great - Works great. Little expensive but worth it. ## 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 | #1,765 in Automotive ( See Top 100 in Automotive ) #1 in Automotive Replacement Exhaust Check Valves | | Brand | EVIL ENERGY | | Brand Name | EVIL ENERGY | | Connector Type | Barb | | Customer Reviews | 4.5 out of 5 stars 3,155 Reviews | | Exterior Finish | Stainless Steel | | Inlet Connection Size | 0.38 inches | | Inlet Connection Type | National Pipe Tapered | | Manufacturer | EVIL ENERGY | | Manufacturer Part Number | EV01342S10BK | | Material | Aluminum | | Material Type | Aluminum | | Maximum Pressure | 6 bar | | Model Number | EV01342S10BK | | Number of Pieces | 2 | | Number of Ports | 2 | | Outlet Connection Size | 0.38 inches | | Outlet Connection Type | National Pipe Tapered | | Set Name | 2 | | Size | 3/8 | | Thread Size | 3/8 inch (10mm) | | Thread Type | NPT | | Unit Count | 2 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 - **Maximum Operating Pressure:** 6 Bars - **Number of Ports:** 2 - **Outlet Connection Size:** 0.38 Inches - **Outlet Connection Type:** National Pipe Tapered - **Unit Count:** 2.0 Count ## 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) ## 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 ### ⭐⭐⭐⭐⭐ Works as intended. *by D***3 on August 4, 2026* My zero turn would crank a little longer than I thought it should before it would start. I suspected the fuel was siphoning back to the tank after shutdown. This was cheap and easy to install so why not give it a try. Glad I did. Much better now. ### ⭐⭐⭐⭐⭐ They Work Great *by R***. on July 21, 2026* Works great. Little expensive but worth it. ### ⭐⭐⭐⭐⭐ It was actually what I ordered *by D***S on June 12, 2026* Work perfectly what a great product! ## Frequently Bought Together - EVIL ENERGY 3/8" Fuel Check Valve One Way Inline Non Return Diesel Gasoline Black(10mm OD,2PCS) - 3/8 Inch (10mm) ID Fuel Line Hose 10FT NBR Rubber Push Lock Hose High Pressure 300PSI for Automotive Fuel Systems Engines - EVIL ENERGY Oil Catch Can, Universal Baffled Catch Can Kit with Breather Filter, 300ml Aluminum Air Oil Separator Tank NBR Fuel Hose Kits for PCV System --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.be/products/235340688-evil-energy-3-8-fuel-check-valve-one-way-inline](https://www.desertcart.be/products/235340688-evil-energy-3-8-fuel-check-valve-one-way-inline) --- *Product available on Desertcart Belgium* *Store origin: BE* *Last updated: 2026-08-11*