EVIL ENERGY AN10 Male to AN8 Female Flare Reducer Adapter — 2PC 6061-T6 Black Anodized, 1500 PSI

The EVIL ENERGY 8AN female to 10AN male flare reducer/expander is a compact, anodized 6061-T6 aluminum adapter that converts AN10 male fittings to AN8 female flare connections for fuel, coolant and EFI systems.

This two-piece adapter set provides a reliable mechanical and flare seal between AN10 male lines and AN8 female ports. Machined from aerospace-grade 6061-T6 aluminum and finished in hard black anodize, the adapters maintain a 37° flare sealing face and thread compatibility with common UNF AN sizing. They are designed for motorsport and performance builds where fitment flexibility, pressure rating, and temperature tolerance matter.

How does the adapter convert between AN10 and AN8 fittings?

The adapter has an AN10 male threaded end and an AN8 female threaded end that accepts a 37° flare connection. Threads match UNF AN standards so it screws onto standard AN10 male plumbing and accepts AN8 flare fittings without additional modification. Installation is typically hand-started and tightened using the fitting flats to avoid cross-threading.

• AN10 male thread size: 7/8-14 UNF
• AN8 female thread size: 3/4-16 UNF
• 37° flare sealing surface for metal-to-metal flare seal
• Supplied as a 2-piece set for spare or dual-line use

What pressures and temperatures can these aluminum adapters handle?

These adapters are rated for a maximum working pressure of 1500 PSI and operate across a wide temperature range, making them suitable for most fuel and cooling system applications found in street and race cars. The 6061-T6 alloy combined with a hard anodized finish provides mechanical strength and corrosion resistance under typical engine bay conditions.

• Maximum working pressure: 1500 PSI
• Working temperature range: -65°F to 252°F (-54°C to 122°C)
• Material: 6061-T6 aluminum for high strength-to-weight ratio
• Black anodized finish resists corrosion and abrasion

Where are these adapters commonly used in automotive builds?

The reducer/expander fittings are versatile for fuel delivery systems, EFI plumbing, coolant lines, and LS swap projects where different AN sizes must be joined. They’re handy for converting existing AN10 feed lines to AN8 fittings on pumps, rails, or components without changing entire hose assemblies.

• EFI systems and aftermarket fuel rails
• Fuel pumps, filters and feed/return plumbing
• Cooling lines and custom plumbing in swap projects
• Performance and motorsport applications requiring compact adapters

How should I install and maintain the AN flare adapter?

Ensure mating surfaces are clean and threads are undamaged before assembly. Hand-start the threads to avoid cross-threading, tighten with an appropriate wrench using the flats, and torque to the component manufacturer’s recommendation for AN fittings; do not overtighten. Periodically inspect for leaks and corrosion, especially after initial run-in and seasonal storage.

• Hand-start threads, then tighten with a wrench on the flats
• Check 37° flare faces for burrs or damage before sealing
• Inspect connections after first run and during routine maintenance
• Replace if anodize is heavily worn or threads are stripped

Who is this for: This EVIL ENERGY adapter set is aimed at enthusiasts, tuners, and professional installers who need a compact, high-strength solution to join AN10 male lines to AN8 female flare components. If you’re building or modifying fuel systems, performing LS swaps, or adapting plumbing between aftermarket parts, these anodized 6061-T6 fittings give a dependable, serviceable connection without replacing existing hoses or hard lines.