EVIL ENERGY 6AN to 1/4" NPT Male 90 Degree Fitting Adapter

EVIL ENERGY 6AN to 1/4" NPT 90° fitting adapter is a machined aluminum elbow that converts a 6AN flare connection to a 1/4" NPT male tapered thread at a right angle, sold as a set of two.

This pair of 90-degree adapters provides a compact, corrosion-resistant way to join AN flare lines to tapered NPT ports in automotive and industrial systems. Machined from 6061-T6 aluminum and finished with a black anodized surface, these elbows are built for routing fluid lines where space is limited and a sealed transition between AN and NPT connections is required. They are commonly used in fuel, cooling, and power steering plumbing; however, ensure proper sealing practices on the NPT threads to prevent leaks.

How does this adapter link 6AN flare fittings to 1/4" NPT ports?

The adapter couples a 6AN (9/16-18 UNF) flare inlet to a 1/4" NPT tapered male thread at a 90° angle. The AN side seals by metal-to-metal contact at a 37° flare face while the NPT side seals via the tapered thread, which requires a separate sealant.

• 6AN flare connection: 9/16-18 UNF thread with 37° flare sealing.
• 1/4" NPT male: tapered 60° thread; needs thread sealant or PTFE tape.
• 90° elbow design for tight routing and clearance management.
• Sold as two identical adapters for paired installations.

What materials and finish are used, and why do they matter?

Each elbow is CNC-machined from 6061-T6 aluminum, a common alloy for automotive fittings due to its strength-to-weight ratio and corrosion resistance. The black anodized surface improves durability, resists wear, and provides a uniform appearance in exposed installations.

• 6061-T6 aluminum: lightweight, strong, corrosion-resistant.
• Black anodized finish: resists scratches and oxidation.
• Precision machining: consistent thread engagement and seating.
• Non-ferrous material: compatible with many fluid systems when used correctly.

How should I install these adapters to avoid leaks?

Thread sealing is essential because the AN side seals on the flare face but the 1/4" NPT side relies on the tapered thread. Apply a suitable NPT thread sealant or PTFE tape to the male NPT threads before assembly, tighten with a wrench, and avoid overtorque that could distort threads or the flare face.

• Clean mating surfaces and thread debris before assembly.
• Use PTFE tape or a pipe thread sealant on the NPT male threads.
• Tighten with the appropriate wrench; do not overtighten.
• Inspect after initial pressure test and re-torque if necessary.

Where are these adapters typically used and what limitations should I know?

These elbows are widely used to adapt fuel lines, coolant lines, and power steering hoses where a right-angle transition from AN to NPT is needed. They are not a universal solution for every fluid or pressure condition — confirm compatibility with the fluid, system pressure, and temperature before installation.

• Common applications: fuel delivery, cooling loops, steering systems.
• Check fluid compatibility: aluminum vs. corrosive fluids or additives.
• Verify pressure rating with your system specifications before use.
• Use correct sealing methods on the NPT side to prevent leaks.

Who is this for: The EVIL ENERGY 6AN to 1/4" NPT 90° Aluminum Adapter (2PCS) suits mechanics, fabricators, and DIY enthusiasts who need a compact, anodized aluminum elbow to adapt 6AN flare hoses to 1/4" NPT ports. It is ideal when routing lines in tight spaces or when replacing a straight fitting with a right-angle adapter, provided users follow proper thread sealing and compatibility checks for their specific system.