EVIL ENERGY 8AN Flare to 8AN ORB Male Adapter — 2-Pack Black Aluminum, 37° Flare with NBR O-ring Seal

EVIL ENERGY's 8AN Flare to 8AN ORB Male adapter is a two-piece aluminum fitting that converts a 37° AN flare connection to an ORB male port with an O-ring seal for fuel-rail and high-pressure fuel-system use.

This compact adapter set makes it simple to join AN-style flare lines to ORB-equipped fuel rails, regulators, pumps, and oil coolers without custom fabrication. Machined from 6061-T6 aluminum and finished in black, each fitting uses the standard 3/4-16 UNF (8AN/AN8) thread pitch and an NBR O-ring to create a reliable seal under typical automotive operating conditions. The adapters are rated for demanding environments, combining mechanical strength, corrosion resistance, and a temperature range suitable for most engine bays.

How does this adapter ensure a leak-free connection?

The adapter uses two proven sealing methods: the AN side seals with a 37° flare face while the ORB side seals with an NBR O-ring compressed into the male port. This dual approach prevents fluid seepage where metal-to-metal contact alone might fail, especially under vibration.

• 37° AN flare sealing on the hose/flared fitting side
• NBR O-ring on the ORB male side for captive-port sealing
• 3/4-16 UNF thread ensures correct fit for 8AN/AN8 applications
• Precision machining reduces misalignment that can cause leaks

What performance and temperature ranges can I expect?

These adapters are engineered for fuel-system pressures and typical engine-bay temperatures. The body material and O-ring specification together determine safe operating windows.

• Working pressure rated to approximately 1500 PSI
• Body temperature capability from -65°F to 252°F
• O-ring (NBR) temperature tolerance from -4°F up to 392°F
• Suitable for many high-pressure fuel, oil, and cooling line setups

Will these fit my vehicle’s fuel rail and related components?

The adapters use the common 8AN (AN8) flare sizing and an 8AN ORB male thread, so they fit systems designed around 3/4-16 UNF fittings. They are intended as a direct solution when you need to mate a flare-style hose to a port that accepts an ORB male fitting.

• Thread size: 3/4-16 UNF (standard AN8/8AN)
• Applications: fuel rails, fuel pumps, pressure regulators, oil coolers
• Includes two identical adapters for paired connections or spare use
• Black anodized finish for corrosion resistance and low visual profile

How simple is installation and what tools are required?

Installation is straightforward for anyone familiar with AN/ORB fittings: screw the ORB male into the port with the O-ring in place, then attach the flare hose to the 37° seat and tighten to specification. No special sealing compounds are needed because the O-ring and flare provide the seal.

• Hand-start threads, then tighten with appropriate AN wrenches
• Replace O-ring if damaged; keep mating surfaces clean
• Check torque specs for your specific fuel rail or component
• Includes two adapters—convenient for dual-rail or spare use

Who is this for? EVIL ENERGY’s 8AN Flare to 8AN ORB Male 2-pack is aimed at mechanics, tuners, and DIY automotive enthusiasts who need a dependable, off-the-shelf solution for mating flare-style AN hoses to ORB ports. If you work on aftermarket fuel systems, turbo or high-performance engines, or maintain oil-cooling plumbing, these adapters save time and avoid expensive custom machining. They’re also useful as spare fittings for race teams and shops that frequently reconfigure fuel lines.