EVIL ENERGY 6AN to 3/8" NPT Male 90 Degree Fitting Adapter

EVIL ENERGY 6AN to 3/8" NPT Male 90° fitting adapter is a black-anodized 6061-T6 aluminum elbow (two pieces) that converts a 6AN flare connection to a 3/8" NPT male tapered thread for compact fluid-routing applications.

This pair of 90-degree adapters lets you change from an AN-style 37° flare connection to a tapered NPT threaded port while keeping the bend close to the mating surfaces. Machined from 6061-T6 aluminum and finished with a hard black anodize, the adapters balance light weight and corrosion resistance for automotive and industrial fluid lines. They are commonly used where space is tight and a right-angle transition between AN hose ends and NPT ports is required.

How does this adapter convert between AN and NPT connections?

The adapter features a 6AN flare seat (37°) on one end and a 3/8" NPT male tapered thread on the other. The AN end seals by metal-to-metal contact at the flare, while the NPT side relies on its tapered threads to create a pressure-tight joint when used with proper thread sealant.

• 6AN flare diameter: 9/16-18 UNF thread standard for AN fittings.
• 3/8" NPT male: tapered 60° thread that compresses with a sealant.
• 90° elbow profile to redirect fluid without extra hose bends.

What materials and finish are used, and why does that matter?

Each adapter is CNC-machined from 6061-T6 aluminum and finished with a black anodized coating. 6061-T6 offers a favorable strength-to-weight ratio and good machinability; the anodize improves surface hardness and corrosion resistance while giving a consistent appearance.

• 6061-T6 aluminum — durable yet lightweight for automotive use.
• Black anodized finish — increased abrasion and oxidation resistance.
• Machined seats and threads — accurate interfaces for reliable sealing.

Where are these adapters typically used and what should I watch for during installation?

These adapters are suited for fuel, oil, coolant, and power steering plumbing where an AN hose must transition to an NPT port at a right angle. Because NPT relies on taper and sealant, you should always use PTFE tape or thread sealant on the male NPT threads to prevent leakage and avoid overtightening the AN flare side, which seals at the 37° seat.

• Common uses: fuel lines, oil feeds, coolant plumbing, power steering fittings.
• Installation tip: apply PTFE tape or pipe sealant to the NPT threads.
• Tooling: tighten with a wrench; avoid excessive torque that can deform flare seats.

How many pieces are included and how do I confirm compatibility?

This listing includes two identical 90° adapters. Confirm compatibility by matching your hose end to 6AN (9/16-18 UNF) flare fittings and your port to 3/8" NPT tapered threads; measure threads and verify the intended sealing methods before assembly.

• Quantity: 2 fittings per pack for paired or redundant connections.
• Check threads: 6AN uses a 37° flare; 3/8" NPT is tapered.
• Sealant: PTFE tape or liquid thread sealant is recommended for NPT side.

Who is this for: These EVIL ENERGY adapters are for mechanics, fabricators, performance vehicle builders, and DIY enthusiasts who need a compact, reliable 90° transition between AN hose fittings and NPT ports. If you require lightweight, corrosion-resistant hardware for fuel, oil, coolant, or steering lines and you understand flare vs. tapered sealing practices, this two-piece set provides a simple, serviceable solution for tight routing and retrofits.