EVIL ENERGY 8AN Male Flare to 3/8" NPT Pipe Fitting Adapter

EVIL ENERGY AN8 male flare to 3/8" NPT straight adapter — a black-anodized 6061-T6 aluminum fitting sold in a pack of four for joining AN8 flare lines to 3/8" NPT threaded ports.

This adapter converts an AN8 male 37° flare connection to a 3/8" NPT tapered pipe thread, providing a compact, corrosion-resistant solution for fuel, coolant, power steering, and similar fluid systems. Machined from 6061-T6 aluminum and finished with a black anodized coating, each straight fitting is designed for strength and light weight. Because NPT threads seal with taper, using a thread sealant or PTFE tape on the NPT side is recommended to achieve leak-free connections.

How does this adapter join AN and NPT connections reliably?

The adapter mates an AN8 male flare (sealed by a 37° cone) to a 3/8" NPT pipe thread (sealed by a tapered 68° thread), allowing different hose and port types to be connected without custom fabrication. Proper installation relies on the flare seating correctly and the NPT thread being sealed with an approved compound.

• AN8 male end uses a precision 37° flare seating surface for a metal-to-metal seal.
• 3/8" NPT side uses standard tapered threads — requires sealant or PTFE tape.
• Straight-through geometry preserves flow and minimizes turbulence.
• Wrench flats allow secure tightening and easy removal.

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

Each fitting is milled from 6061-T6 aluminum, a common alloy chosen for its combination of strength, machinability, and resistance to corrosion. The black anodized finish adds a durable protective layer that resists wear and improves appearance in visible installations.

• 6061-T6 aluminum provides high strength-to-weight performance.
• Black anodizing protects against oxidation and surface damage.
• Lightweight construction reduces added mass on hoses and fittings.
• Precision machining ensures consistent thread fit and flare geometry.

Where are these adapters typically used, and what should I check before installing?

These fittings are commonly used in automotive and motorsport plumbing: fuel lines, coolant lines, power steering circuits, and other pressurized fluid systems that combine AN hoses with NPT ports. Before installation, verify thread compatibility, clean mating surfaces, and apply thread sealant or PTFE tape to the NPT threads to prevent leaks.

• Suitable for fuel, oil, coolant, and steering fluid lines (non-medical fluids).
• Confirm AN8 hose and 3/8" NPT port sizes match your system components.
• Use sealant/PTFE tape on NPT threads; do not rely on flare side for thread sealing.
• Tighten with an appropriate wrench; avoid over-torquing the aluminum body.

How many fittings come in the package and how easy are they to use?

This product is supplied as a set of four identical straight adapters, giving you spares or enough fittings for multiple connections. The straight design and wrench flats make installation straightforward for experienced DIYers and professional installers alike.

• Pack of 4 matching AN8 male to 3/8" NPT straight adapters.
• Wrench-accessible flats for secure installation and removal.
• Minimal assembly required — clean, seal, and torque to specification.
• Store extras for future repairs or system upgrades.

Who is this for: Automotive technicians, motorsport fabricators, and experienced enthusiasts who need a durable, lightweight adapter to join AN8 flare hoses with 3/8" NPT ports. This four-piece set is ideal when you want consistent fittings for multiple lines, a clean black finish for visible installations, and the strength of 6061-T6 aluminum. If you’re unsure about sealing practice for NPT threads, consult a fitter or follow manufacturer torque and sealing recommendations before pressurizing the system.