EVIL ENERGY AN8 Female-to-Female Swivel Coupler — Black Aluminum 360° Rotating 2-Pack, 1500 PSI

This compact, high-strength adapter lets you join two 8AN fluid lines quickly while preserving swivel movement and serviceability. Machined from 6061-T6 aluminum and finished with a black anodized coating, the union is built to resist corrosion and tolerate a broad temperature range. It uses a 37-degree flare for sealing and a 3/4-16 UNF thread form, engineered for automotive and performance fluid systems where reliable sealing and alignment flexibility matter.

How does this coupler simplify hose routing and installation?

The built-in 360° swivel allows the fitting to rotate independently of the hoses, reducing twist and tension during assembly. That makes it easier to align fittings in tight engine bays or custom plumbing runs without stressing the hose ends.

• 360° rotating union prevents hose twisting during install
• Straight inline design keeps routing simple in confined spaces
• Re-usable connection enables adjustments without cutting lines

What are the pressure and temperature limits I should expect?

This adapter is rated to withstand up to 1,500 PSI working pressure and functions safely across a wide operational temperature span. It covers typical automotive and motorsport fluid temperatures from cold starts to hot running conditions.

• Maximum working pressure: 1,500 PSI
• Operating temperature range: -40°F to 250°F
• Suitable for many fuel, oil, and coolant system applications (verify fluid compatibility)

What sealing and thread standards does the fitting use?

The coupler seals on a 37° flare surface common to AN-style fittings, ensuring a metal-to-metal seal when tightened correctly. Threads follow the 3/4-16 UNF specification for the union portion, so confirm thread match with mating components before assembly.

• Sealing: 37° AN flare seating surface
• Thread size: 3/4-16 UNF on the union body
• Designed for standard AN8 hose ends and adapters

How durable is the material and finish for long-term use?

Constructed from aerospace-grade 6061-T6 aluminum, the union combines strength with low weight. The black anodized surface improves wear and corrosion resistance while maintaining a performance-oriented look under the hood.

• Material: aluminum alloy 6061-T6 for high strength-to-weight
• Finish: black anodized for corrosion and abrasion resistance
• Reusable design supports maintenance and system reconfiguration

Who is this for: This 2-piece EVIL ENERGY AN8 female-to-female straight swivel coupler is aimed at automotive enthusiasts, race teams, and DIY mechanics who need a robust, low-profile union for AN8 lines. It's suitable for engine bays, fuel systems, oil lines, and other performance plumbing tasks where leak-resistant 37° flare seals, a 360° swivel, and durable aluminum construction are required. Always confirm compatibility with your fluid and system specifications before installation.