EVIL ENERGY 8AN Flare to AN6 ORB Male O-Ring Fitting

EVIL ENERGY's 8AN flare to AN6 ORB male O-ring adapter converts a 3/4-16 UNF flare feed to a 9/16-18 UNF ORB port with a reusable aluminum body and NBR O-ring seal.

This pair of adapters bridges two common fuel and fluid connection standards, letting you join an 8AN flare line to an AN6 ORB port without changing hoses or fittings. Forged from 6061-T6 aluminum and fitted with NBR O-rings, each adapter is made to resist corrosion and maintain a sealed connection under typical automotive and motorsport service conditions. The design combines a 37-degree flare sealing surface on the AN side with an O-ring seat on the ORB side to simplify installation and reduce the number of special components required when reconfiguring fuel rails, pumps, or oil systems.

How does the adapter seal between flare and ORB connections?

The adapter uses two different sealing methods matched to each thread type. The 8AN side forms a metal-to-metal seal with a 37° flare surface, while the AN6 ORB side compresses an NBR O-ring into the ORB counterbore to create a pressure-tight barrier.

• 8AN thread: 3/4-16 UNF with 37° flare sealing face
• AN6 ORB thread: 9/16-18 UNF with O-ring seat
• Included NBR O-rings for reusable, replaceable sealing
• Metal flare plus elastomer O-ring combine to reduce leak points

What materials and performance limits should I expect?

The adapters feature a 6061-T6 aluminum body for strength and corrosion resistance, paired with NBR rubber O-rings chosen for common fuel and oil compatibility. They are rated to 1500 PSI working pressure and are suitable across a wide temperature span for many automotive and industrial applications.

• Body: aluminum alloy 6061-T6 for durability
• Seal: NBR O-ring with broad oil and fuel resistance
• Working pressure: rated to 1500 PSI
• Temperature ranges: adapter -65°F to 252°F; O-ring -4°F to 392°F

Where can I use these adapters in my vehicle or project?

These fittings are intended for fluid transfer systems that employ AN flare hoses and ORB ports. They work well in fuel rails, oil coolers, fuel pumps, pressure regulators, and inline filters where converting between 8AN flare lines and AN6 ORB ports is required.

• Compatible with fuel rail and fuel pump connections
• Useful for oil cooler and filter plumbing conversions
• Saves time when adapting existing AN hoses to ORB ports
• Sold as a convenient 2-piece set for matching both sides of a run

How do I install and maintain these fittings safely?

Installation requires clean threads and the correct torque for AN and ORB fittings to prevent distortion or leaks. Replace O-rings if damaged or hardened, and inspect connections periodically for signs of seepage or wear, especially on high-vibration engines.

• Ensure mating surfaces and threads are clean before assembly
• Hand-start threads; torque per component manufacturer recommendations
• Replace NBR O-rings if nicked, flattened, or aged
• Check fittings after initial run-in and at service intervals

Who is this for: These EVIL ENERGY adapters are aimed at mechanics, tuners, fabricators, and DIY enthusiasts reworking fuel or oil plumbing who need a compact, serviceable way to join 8AN flare lines to AN6 ORB ports. They suit track-day builds, custom engine swaps, and maintenance shops that prefer durable aluminum fittings with replaceable O-ring seals.