6AN Female Flare To Three Eighths Inch Tube OD Hardline Fitting Adapter Aluminum Black Two Pack For Fuel Line Connector Nine Sixteenth Inch UNF Thread Compatible With Stainless Steel Or Aluminum Hardline

6AN Female Flare to 3/8 In Tube Aluminum Fitting - 2-Pack
✔️ 9/16-18 UNF thread fits 3/8 in OD hardline (9.53 mm) aluminum

These 6AN female flare adapters convert AN fittings to 3/8 in hardline tubes, ideal for automotive fuel, cooling, and brake line installations. The black anodized aluminum body with brass ferrule provides durability and corrosion resistance, and they’re designed for use with stainless steel or aluminum hardline tubes only.

✅ Material: aluminum alloy 6061-T6 body with brass ferrule, black anodized
✅ Thread: 9/16-18 UNF
✅ Tube size & seal: 3/8 in OD hardline with a 37-degree flare seal
✅ Pack: 2-pack
✅ Applications: fuel, water, air lines in automotive and racing setups
✅ Compatibility: hardline stainless steel or aluminum

💡 What is a 6AN flare to 3/8 inch hardline adapter used for in automotive fuel and cooling systems?

These handy adapters link AN-compatible lines to rigid hardline plumbing in tight engine bays.

• Connects 6AN female flare to 3/8 in hardline
• Useful for routing fuel, coolant, or air lines in race or street builds
• Constructed from corrosion-resistant aluminum with brass ferrule
• Designed for stainless steel or aluminum hardlines for reliability