{"product_id":"evil-energy-6an-male-to-5-8-18-inverted-flare-adapter-4-pack-6061-t6-aluminum-black-anodized-1500-psi","title":"EVIL ENERGY 6AN Male to 5\/8-18 Inverted Flare Adapter 4-Pack — 6061-T6 Aluminum, Black Anodized, 1500 PSI","description":"\u003cp\u003e\u003cstrong\u003eEVIL ENERGY 6AN male to 5\/8 x 18 inverted flare straight adapter is a durable aluminum fitting that converts AN hose connections to 5\/8-18 inverted flare threads for fuel and cooler systems.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis four-piece adapter set offers a compact, high-pressure solution when you need to bridge 6AN lines to components with 5\/8 x 18 inverted flare ports. Machined from 6061-T6 aluminum and finished with a black anodized coating, each coupler seals with a 37° AN flare to ensure a tight mechanical joint. The adapters are specified for demanding automotive and industrial uses with a rated working pressure and broad temperature tolerance.\u003c\/p\u003e\n\n\u003ch3\u003eHow reliable is this adapter under pressure and heat?\u003c\/h3\u003e\n\u003cp\u003eThese adapters are engineered for high-pressure fluid work and for use across a wide temperature span. The 6061-T6 aluminum core resists deformation while the anodized finish protects against corrosion. The 37° flare sealing geometry provides a positive metal-to-metal seal when installed correctly.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eWorking pressure rating: 1500 PSI for typical fuel and coolant line demands.\u003c\/li\u003e\n  \u003cli\u003eTemperature range: -40°F to 250°F for cold starts and elevated operating temperatures.\u003c\/li\u003e\n  \u003cli\u003eMaterial strength: CNC-machined 6061-T6 aluminum for stiffness and lightweight durability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat sizes and threads does this adapter convert between?\u003c\/h3\u003e\n\u003cp\u003eThe adapter converts a 6AN male coupler to a 5\/8 x 18 inverted flare female thread. The 6AN male thread specification corresponds to a 9\/18-18 UNF designation for compatibility checks with mating AN hardware. These are straight adapters, not swivel fittings, so they keep hose routing fixed.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAN side: 6AN male with standard 37° flare sealing face.\u003c\/li\u003e\n  \u003cli\u003eThread side: 5\/8 x 18 inverted flare (9\/18-18 UNF equivalence).\u003c\/li\u003e\n  \u003cli\u003eDesign: straight, non-rotating coupler suitable for permanent or semi-permanent joins.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhere are these adapters typically used and how do they install?\u003c\/h3\u003e\n\u003cp\u003eThese adapters are widely used in automotive fuel systems, transmission coolers, oil feeds, and aftermarket plumbing that needs an AN-to-inverted-flare transition. Installation is straightforward: verify thread compatibility, hand-start the thread, then tighten to recommended torque to compress the 37° flare for a leak-free connection. Use thread sealant only where indicated — the AN flare provides the primary seal.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCommon applications: fuel lines, cooler connections, oil feeds, and custom plumbing.\u003c\/li\u003e\n  \u003cli\u003eInstallation tips: hand-thread first, then torque to proper spec to avoid flare damage.\u003c\/li\u003e\n  \u003cli\u003eMaintenance: inspect fittings periodically for corrosion or loosening, replace if damaged.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? This 4-pack from EVIL ENERGY is aimed at mechanics, performance car builders, motorsport fabricators, and DIY enthusiasts who need a reliable, compact adapter to join AN hoses with 5\/8 x 18 inverted flare ports. It’s useful for retrofit projects, repairing mismatched plumbing, or adding aftermarket coolers where space and a strong seal are essential. Choose these adapters when you need a high-pressure rated, lightweight solution with proven AN flare sealing geometry.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are these adapters compatible with fuel and oil lines?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. Made from 6061-T6 aluminum with a 37° flare seal, they suit fuel, oil, and cooler lines within the listed pressure and temperature ranges.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do I need thread sealant when installing these adapters?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Generally no; the AN 37° flare provides the primary seal. Use sealant only on threads if the mating component specifically requires it.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"EVIL ENERGY","offers":[{"title":"Default Title","offer_id":67591402324153,"sku":"B0D1R58FKV","price":64.8,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/3765\/3177\/files\/evil-energy-adapter-front-view_b28761c5-177b-4900-ac95-3e64dba1402c.jpg?v=1790549675","url":"https:\/\/redleafauto.ca\/products\/evil-energy-6an-male-to-5-8-18-inverted-flare-adapter-4-pack-6061-t6-aluminum-black-anodized-1500-psi","provider":"Redleaf Auto","version":"1.0","type":"link"}