--- 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: "₩65433" currency: KRW in_stock: true reviews_count: 5 category: "Evil Energy" url: https://www.desertcart.kr/products/295377376-evil-energy-3-8-fuel-check-valve-one-way-inline store_origin: KR region: South Korea --- # 0.2–6 bar working pressure range 6061-T6 aluminum alloy build -22℉ to 266℉ operating temperature EVIL ENERGY 3/8" Fuel Check Valve One Way Inline Non Return Diesel Gasoline Black(10mm OD,2PCS) **Brand:** evil energy **Price:** ₩65433 **Availability:** ✅ In Stock ## Summary > ⛽ Keep your fuel flow flawless—never miss a start again! ## 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?** ₩65433 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/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 - • **All-Weather Performance:** Designed to perform in extreme temperatures from -22℉ to 266℉, keeping your fuel system stable year-round. - • **Wide Pressure Compatibility:** Operates flawlessly between 0.2 and 6 bar (2.9–87 psi), perfect for low-pressure fuel systems and carburetors. - • **Reliable One-Way Flow Control:** Stainless steel spring ensures seamless fuel flow in one direction, eliminating backflow and stabilizing system pressure. - • **Precision Engineered Durability:** Crafted from high-strength 6061-T6 aluminum with black anodized finish for ultimate corrosion and wear resistance. - • **Quick & Hassle-Free Installation:** Compact, lightweight design with barb inlet/outlet for fast setup—get your system running without downtime. ## Overview The EVIL ENERGY 3/8" Fuel Check Valve is a premium inline non-return valve made from durable 6061-T6 aluminum alloy with a corrosion-resistant black anodized finish. Engineered for low-pressure fuel systems, it features a stainless steel spring to prevent backflow and maintain stable pressure within a 0.2–6 bar range. Its robust design supports extreme temperatures from -22℉ to 266℉, ensuring reliable performance in diverse conditions. Compact and easy to install with barb connectors, this valve is ideal for carburetors and various fuel types including diesel and gasoline. ## 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: Works great on my jeep tj. New fuel pump a few months back and the check valve went bad pretty fast. I chased a lot of issues( maintenance items that needed serviced anyways) but no more cold start issues. Fires right up. Will update in a month or so if it dies on me. But they’re cheap, and only take a few minutes to swap out Review: Nice construction, used for pond water feature rather than fuel so s tad over engineered for the purpose but I like that. Good fit well made. ## 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 | | ASIN | B08JJ1F79D | | Best Sellers Rank | #35,189 in Automotive ( See Top 100 in Automotive ) #4 in Automotive Check Valves | | Brand Name | EVIL ENERGY | | Connector Type | Barb | | Customer Reviews | 4.5 4.5 out of 5 stars (2,879) | | Customer reviews | 4.5 4.5 out of 5 stars (2,879) | | Date First Available | 14 October 2020 | | Exterior Finish | Stainless Steel | | Inlet Connection Size | 0.38 Inches | | Inlet Connection Type | National Pipe Tapered | | Item model number | EV01342S10BK | | Manufacturer | EVIL ENERGY | | Manufacturer | EVIL ENERGY | | 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 | | Package Dimensions | 11.99 x 10.59 x 2.79 cm; 41 g | | 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) ## 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 ### ⭐⭐⭐⭐⭐ Review *by C***N on 15 March 2026* Works great on my jeep tj. New fuel pump a few months back and the check valve went bad pretty fast. I chased a lot of issues( maintenance items that needed serviced anyways) but no more cold start issues. Fires right up. Will update in a month or so if it dies on me. But they’re cheap, and only take a few minutes to swap out ### ⭐⭐⭐⭐⭐ Review *by C***S on 20 January 2024* Nice construction, used for pond water feature rather than fuel so s tad over engineered for the purpose but I like that. Good fit well made. ### ⭐⭐⭐⭐⭐ Review *by M***D on 16 April 2024* Recommend ## 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.kr/products/295377376-evil-energy-3-8-fuel-check-valve-one-way-inline](https://www.desertcart.kr/products/295377376-evil-energy-3-8-fuel-check-valve-one-way-inline) --- *Product available on Desertcart South Korea* *Store origin: KR* *Last updated: 2026-05-07*