EVIL ENERGY 8AN Female to 1/2" Compression Hardline Fittings, 2‑Pack — Aluminium Body with Brass Ferrule

EVIL ENERGY 8AN female to 1/2" compression hardline fitting converts a 1/2" OD hardline to an 8AN threaded connection for secure, leak-resistant fuel and fluid lines.

This two-piece kit from EVIL ENERGY gives you a compact, durable adapter that joins 1/2" stainless or aluminum hardline to 8AN female threaded components. Machined from aluminum alloy with a brass ferrule and a 37° flare sealing surface, the fitting is built for automotive fuel systems, engine modifications, and other pressurized fluid circuits where a reliable, vibration-resistant connection is needed. The pack contains two identical fittings so you can outfit both ends of a line or keep a spare on hand.

How does this fitting create a leak-resistant connection?

The 37° flare on the AN thread compresses against the mating surface to form a metal-to-metal seal, while the brass ferrule grips the hardline for mechanical retention. Proper torque and the correct hardline diameter are essential to achieve the intended seal.

• 37° AN flare provides metal sealing surface for pressure resistance
• Brass ferrule compresses to hold 1/2" hardline securely
• Thread size: 8AN (3/4-16 UNF) for standard compatibility
• Use correct torque and inspect ferrule seating during installation

Will this work with my tubing and fuel system components?

This fitting is designed specifically for 1/2" outside diameter hardline made from stainless steel or aluminum and for mating to 8AN female threaded ports. It is commonly used in fuel delivery systems, engine plumbing, and retrofit applications where AN fittings are required.

• Fits 1/2" OD hardline only—measure tubing before purchase
• Threaded 8AN end uses 3/4-16 UNF standard pitch
• Not intended for soft rubber hose or non-metal tubing
• Suitable for fuel lines, oil return routes, and coolant bypasses where AN fittings are used

What materials and construction details matter for durability?

The adapter body is machined from aluminum alloy for light weight and corrosion resistance, while the ferrule is brass to combine grip and conformability. Those material choices balance long-term serviceability with resistance to vibration and thermal cycling found in engine bays.

• Aluminum alloy body for decreased weight and corrosion protection
• Brass ferrule provides reliable compression on metal hardline
• Precision threads (3/4-16 UNF) for consistent torque and fit
• Factory flare angle ensures repeatable sealing when installed properly

How should I install and maintain these compression fittings?

Installation requires the correct hardline size, a clean mating surface, and proper tightening to avoid over-compression or thread damage. Periodic inspection for looseness and leakage is recommended in high-vibration or high-heat environments.

• Confirm hardline is 1/2" OD before assembly
• Slide ferrule onto line, seat into body, and tighten to manufacturer torque guidelines
• Check for leaks under pressure after installation
• Replace ferrule if deformed during removal; reuse only if undamaged

Who is this for: This EVIL ENERGY two-pack is aimed at mechanics, performance tuners, and DIY car builders who need to adapt 1/2" hardline to standard 8AN ports. It's useful for retrofits, custom plumbing runs, or as a spare when upgrading fuel systems—provided you're using stainless or aluminum hardlines and want a robust, reusable metal-to-metal seal.