--- product_id: 218240435 title: "EVIL ENERGY 6AN Flare Cap Block off Fitting Plug Black 2PCS" brand: "evil energy" price: "€ 53.61" currency: EUR in_stock: true reviews_count: 13 category: "Evil Energy" url: https://www.desertcart.de/products/218240435-evil-energy-6an-flare-cap-block-off-fitting-plug-black store_origin: DE region: Germany --- # 6AN Thread Size 9/16-18 UNF Temp Range -65ºF to 252ºF Max Pressure 1500 PSI Seal EVIL ENERGY 6AN Flare Cap Block off Fitting Plug Black 2PCS **Brand:** evil energy **Price:** € 53.61 **Availability:** ✅ In Stock ## Summary > 🔧 Seal the deal with EVIL ENERGY – where precision meets power! ## Quick Answers - **What is this?** EVIL ENERGY 6AN Flare Cap Block off Fitting Plug Black 2PCS by evil energy - **How much does it cost?** € 53.61 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.de](https://www.desertcart.de/products/218240435-evil-energy-6an-flare-cap-block-off-fitting-plug-black) ## 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 - • **High-Pressure Ready:** Withstands up to 1500 PSI, built to perform under extreme automotive and racing conditions. - • **Dual-Pack Convenience:** Two premium flare cap plugs included—ideal for multiple ports or as a reliable backup. - • **Rugged Aluminum Alloy:** Crafted from 6061-T6 aluminum with black anodized finish for ultimate corrosion resistance and durability. - • **Precision 6AN Threading:** Engineered for a perfect 9/16-18 UNF fit, ensuring leak-proof sealing every time. - • **Wide Temperature Tolerance:** Operates flawlessly from -65ºF to 252ºF, perfect for any climate or engine heat scenario. ## Overview The EVIL ENERGY 6AN Flare Cap Block Off Fitting Plug (2PCS) is a high-performance aluminum alloy accessory designed to securely seal unused 6AN fittings in fuel, oil, and coolant lines. Featuring a precise 9/16-18 UNF thread and a 37-degree flare seal, it withstands pressures up to 1500 PSI and temperatures from -65ºF to 252ºF. Its black anodized finish offers superior corrosion resistance, making it a must-have for automotive professionals and racing enthusiasts seeking leak-proof reliability and sleek style. ## Description Buy EVIL ENERGY 6AN Flare Cap Block off Fitting Plug Black 2PCS: Fittings - desertcart.com ✓ FREE DELIVERY possible on eligible purchases Review: Works Great! - The EVIL ENERGY 4AN Flare Cap Block Off Fitting Plug (Black) 2PCS is a high-quality accessory designed to seal off unused AN (Army-Navy) fittings in fuel, oil, and coolant lines, ensuring that the system remains tight, secure, and free from leaks. This set of two 4AN flare cap block-off fittings is made to work with various automotive and racing applications, providing an effective solution for those who need to seal off ports in their systems. Key Features: Durable Construction: The EVIL ENERGY 4AN flare cap block-off fittings are constructed from high-quality aluminum, which is both lightweight and resistant to corrosion. This ensures long-lasting durability, especially in harsh automotive environments where exposure to oils, fuels, and chemicals is common. Black Anodized Finish: The fittings feature a black anodized finish, providing not only an aesthetically sleek look but also increased resistance to wear and tear. The anodizing process also enhances corrosion resistance, making these fittings ideal for high-performance and high-stress environments. 4AN Compatibility: These flare cap fittings are specifically designed for 4AN (4/16") fittings, making them ideal for use in automotive fuel, oil, coolant, and brake systems that require a 4AN size. The flare design ensures a tight seal when properly installed, preventing leaks. Versatility: These cap block-off fittings can be used in a variety of applications, including fuel, oil, coolant, and other fluid systems, as well as in customized builds and racing setups. They are also useful for any project requiring a neat and secure closure for unused ports. Easy to Install: The fittings are simple to install and require no specialized tools. Their design ensures they screw on easily and provide a tight seal once in place. The flare cap style ensures that the seal is secure and effective, preventing any unwanted leaks. Performance: Leak Prevention: The primary function of the EVIL ENERGY 4AN flare cap block-off fittings is to prevent leaks. When sealing off unused ports in fuel, oil, or coolant systems, these fittings create a tight seal that ensures fluids do not escape, even under pressure. This is particularly important in automotive applications, where fluid leaks can be dangerous and costly. Durability: The aluminum construction, coupled with the black anodized finish, means these fittings are resistant to corrosion, rust, and other forms of degradation. This ensures reliable performance even in harsh environments or during high-stress usage. Precision Fit: These fittings are designed with precision and fit 4AN fittings perfectly. They are intended to offer a snug, secure fit that ensures no fluid leakage. The threaded design also makes them easy to install and remove, saving time and effort when working with your automotive or racing system. Build Quality: Material: The fittings are made from aluminum, a lightweight but strong material that resists corrosion. This makes them highly durable and perfect for automotive and racing applications, where components are often exposed to harsh chemicals and extreme conditions. Finish: The black anodized finish not only enhances the appearance of the fittings but also provides additional protection against oxidation and wear. This is particularly useful when using these fittings in engines or systems exposed to high temperatures or corrosive fluids. Threading: The threading on the fittings is precise and ensures a secure connection to the 4AN ports. The fit is tight and leak-free, which is essential when sealing off unused ports in a system that requires airtight and secure closures. Pros: High-quality material: Made from durable, corrosion-resistant aluminum, ensuring longevity and performance. Secure seal: The flare cap design ensures a tight, leak-free seal when used on 4AN fittings. Black anodized finish: Provides an attractive appearance and added protection against wear and corrosion. Versatile: Can be used for a variety of automotive, racing, and custom applications involving fuel, oil, and coolant systems. Easy installation: Simple to install with a secure fit, saving time and reducing the risk of errors during setup. Value pack: The set comes with two fittings, making it convenient for those needing to seal multiple ports or having spare parts on hand. Cons: Limited to 4AN size: These fittings are specifically designed for 4AN ports. If you have different-sized AN fittings in your system, you will need to find the appropriate sizes. Non-adjustable: These are rigid fittings with no adjustment options. While this is ideal for sealing ports, some users might prefer adjustable block-off solutions for greater versatility. Conclusion: The EVIL ENERGY 4AN Flare Cap Block Off Fitting Plug (Black) 2PCS is a reliable and durable solution for sealing off unused ports in automotive and racing systems. Made from high-quality aluminum with a black anodized finish, these fittings offer corrosion resistance, durability, and an excellent seal, ensuring no fluid leaks from the sealed-off ports. Perfect for a variety of applications, these fittings are an excellent choice for fuel, oil, coolant, and other systems requiring secure closures. With easy installation and a secure fit, they are ideal for anyone looking to seal off unused AN fittings quickly and efficiently. Overall, these flare cap block-off fittings provide great value, making them a solid addition to any toolkit for automotive, racing, or custom builds. Review: 8 AN block off caps - They work well. No leaks. Great fit, finish, and quality. Good price as well. ## Features - Size: The thread size of 6an is 9/16-18 UNF. - Seal: The AN flare is sealed at a 37 degree angle. - Parameter: Max Working Pressure: 1500 PSI. Working Temperature Range: -65º F to 252º F. - Material: Made of aluminum alloy 6061-T6, anodized black surface. - Function: The fitting caps block off fuel hose line, prevent dirt and debris from entering fittings and adapters. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0895RQ8QH | | Best Sellers Rank | #1,598 in Automotive ( See Top 100 in Automotive ) #7 in Automotive Replacement Fuel System Equipment | | Brand Name | EVIL ENERGY | | Color | Black-2PCS | | Connector Type | Flare | | Customer Reviews | 4.8 4.8 out of 5 stars (1,687) | | Exterior Finish | Aluminum | | Item Dimensions | 6.54 x 7.32 x 11.97 inches | | Item Weight | 0.02 Kilograms | | Manufacturer | Speedwow Tuning | | Material Type | Aluminum | | Model Number | KT04072-AMZ1 | | Number of Pieces | 2 | | Size | 6AN | | Thread Size | 9/16 | | Thread Type | UNF | | Unit Count | 2 Count | ## Product Details - **Brand:** EVIL ENERGY - **Color:** Black-2PCS - **Connector Type:** Flare - **Exterior Finish:** Aluminum - **Item Weight:** 0.02 Kilograms - **Item dimensions L x W x H:** 6.54 x 7.32 x 11.97 inches - **Material:** Aluminum - **Size:** 6AN - **Thread Size:** 9/16 - **Thread Type:** UNF ## Images ![EVIL ENERGY 6AN Flare Cap Block off Fitting Plug Black 2PCS - Image 1](https://m.media-amazon.com/images/I/511Es9DvHmL.jpg) ![EVIL ENERGY 6AN Flare Cap Block off Fitting Plug Black 2PCS - Image 2](https://m.media-amazon.com/images/I/613MWfGkwDL.jpg) ![EVIL ENERGY 6AN Flare Cap Block off Fitting Plug Black 2PCS - Image 3](https://m.media-amazon.com/images/I/61S0cn04CbL.jpg) ![EVIL ENERGY 6AN Flare Cap Block off Fitting Plug Black 2PCS - Image 4](https://m.media-amazon.com/images/I/71ZcT9+WdXL.jpg) ![EVIL ENERGY 6AN Flare Cap Block off Fitting Plug Black 2PCS - Image 5](https://m.media-amazon.com/images/I/61kEX4IerWL.jpg) ## Available Options This product comes in different **Size, Number Of Items** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works Great! *by F***S on December 10, 2024* The EVIL ENERGY 4AN Flare Cap Block Off Fitting Plug (Black) 2PCS is a high-quality accessory designed to seal off unused AN (Army-Navy) fittings in fuel, oil, and coolant lines, ensuring that the system remains tight, secure, and free from leaks. This set of two 4AN flare cap block-off fittings is made to work with various automotive and racing applications, providing an effective solution for those who need to seal off ports in their systems. Key Features: Durable Construction: The EVIL ENERGY 4AN flare cap block-off fittings are constructed from high-quality aluminum, which is both lightweight and resistant to corrosion. This ensures long-lasting durability, especially in harsh automotive environments where exposure to oils, fuels, and chemicals is common. Black Anodized Finish: The fittings feature a black anodized finish, providing not only an aesthetically sleek look but also increased resistance to wear and tear. The anodizing process also enhances corrosion resistance, making these fittings ideal for high-performance and high-stress environments. 4AN Compatibility: These flare cap fittings are specifically designed for 4AN (4/16") fittings, making them ideal for use in automotive fuel, oil, coolant, and brake systems that require a 4AN size. The flare design ensures a tight seal when properly installed, preventing leaks. Versatility: These cap block-off fittings can be used in a variety of applications, including fuel, oil, coolant, and other fluid systems, as well as in customized builds and racing setups. They are also useful for any project requiring a neat and secure closure for unused ports. Easy to Install: The fittings are simple to install and require no specialized tools. Their design ensures they screw on easily and provide a tight seal once in place. The flare cap style ensures that the seal is secure and effective, preventing any unwanted leaks. Performance: Leak Prevention: The primary function of the EVIL ENERGY 4AN flare cap block-off fittings is to prevent leaks. When sealing off unused ports in fuel, oil, or coolant systems, these fittings create a tight seal that ensures fluids do not escape, even under pressure. This is particularly important in automotive applications, where fluid leaks can be dangerous and costly. Durability: The aluminum construction, coupled with the black anodized finish, means these fittings are resistant to corrosion, rust, and other forms of degradation. This ensures reliable performance even in harsh environments or during high-stress usage. Precision Fit: These fittings are designed with precision and fit 4AN fittings perfectly. They are intended to offer a snug, secure fit that ensures no fluid leakage. The threaded design also makes them easy to install and remove, saving time and effort when working with your automotive or racing system. Build Quality: Material: The fittings are made from aluminum, a lightweight but strong material that resists corrosion. This makes them highly durable and perfect for automotive and racing applications, where components are often exposed to harsh chemicals and extreme conditions. Finish: The black anodized finish not only enhances the appearance of the fittings but also provides additional protection against oxidation and wear. This is particularly useful when using these fittings in engines or systems exposed to high temperatures or corrosive fluids. Threading: The threading on the fittings is precise and ensures a secure connection to the 4AN ports. The fit is tight and leak-free, which is essential when sealing off unused ports in a system that requires airtight and secure closures. Pros: High-quality material: Made from durable, corrosion-resistant aluminum, ensuring longevity and performance. Secure seal: The flare cap design ensures a tight, leak-free seal when used on 4AN fittings. Black anodized finish: Provides an attractive appearance and added protection against wear and corrosion. Versatile: Can be used for a variety of automotive, racing, and custom applications involving fuel, oil, and coolant systems. Easy installation: Simple to install with a secure fit, saving time and reducing the risk of errors during setup. Value pack: The set comes with two fittings, making it convenient for those needing to seal multiple ports or having spare parts on hand. Cons: Limited to 4AN size: These fittings are specifically designed for 4AN ports. If you have different-sized AN fittings in your system, you will need to find the appropriate sizes. Non-adjustable: These are rigid fittings with no adjustment options. While this is ideal for sealing ports, some users might prefer adjustable block-off solutions for greater versatility. Conclusion: The EVIL ENERGY 4AN Flare Cap Block Off Fitting Plug (Black) 2PCS is a reliable and durable solution for sealing off unused ports in automotive and racing systems. Made from high-quality aluminum with a black anodized finish, these fittings offer corrosion resistance, durability, and an excellent seal, ensuring no fluid leaks from the sealed-off ports. Perfect for a variety of applications, these fittings are an excellent choice for fuel, oil, coolant, and other systems requiring secure closures. With easy installation and a secure fit, they are ideal for anyone looking to seal off unused AN fittings quickly and efficiently. Overall, these flare cap block-off fittings provide great value, making them a solid addition to any toolkit for automotive, racing, or custom builds. ### ⭐⭐⭐⭐⭐ 8 AN block off caps *by D***. on November 12, 2025* They work well. No leaks. Great fit, finish, and quality. Good price as well. ### ⭐⭐⭐⭐⭐ Great quality and installation was very easy. *by D***S on October 7, 2025* Great quality and perfect fit! The EVIL ENERGY 10AN flare caps sealed tightly with no leaks, and the black finish looks awesome. Excellent value for the price. --- ## 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.de/products/218240435-evil-energy-6an-flare-cap-block-off-fitting-plug-black](https://www.desertcart.de/products/218240435-evil-energy-6an-flare-cap-block-off-fitting-plug-black) --- *Product available on Desertcart Germany* *Store origin: DE* *Last updated: 2026-04-22*