EVIL ENERGY 6AN Straight Push-Lock Hose Fittings Black 4pc — 6061-T6 Aluminum, 3/8" Barb

EVIL ENERGY 6AN straight push-lock hose fitting end (4-pack) is a black anodized 6AN-to-3/8" barb adapter made from 6061-T6 aluminum for secure rubber fuel-line connections.

This four-piece set of straight push-lock hose fittings from EVIL ENERGY converts standard 6AN thread connections to 3/8" barbed hose ends, offering a compact, lightweight option for routing fuel or fluid lines in automotive and motorsport applications. Each fitting is engineered to match a 9/16-18 UNF 6AN thread and is optimized for use with rubber fuel hoses. With a high working-pressure rating and a broad operating-temperature window, these fittings are intended to deliver reliable mechanical performance when paired with correct hose types and proper clamps.

What sizes and thread spec does this fitting use?

The adapter is a 6AN male-threaded fitting that steps down to a 3/8" hose barb. The 6AN threaded end follows the 9/16-18 UNF specification, ensuring compatibility with standard AN ports and adapters. The barb diameter matches common 3/8" fuel hoses for a secure fit when clamped.

• 6AN male thread: 9/16-18 UNF
• Barb outlet: 3/8" nominal hose size
• Sold as a set of 4 matching straight fittings
• Compact straight configuration for tight routing

What materials and pressure/temperature limits should I expect?

Each fitting is machined from 6061-T6 aluminum and finished in a durable black coating, balancing light weight with corrosion resistance. The fittings are rated to a maximum working pressure of 1,500 PSI and operate across a wide temperature range, suitable for many fluid-handling environments. These specifications make them appropriate for many automotive fuel and low-pressure hydraulic systems when used as intended.

• Body material: 6061-T6 aluminum alloy
• Maximum working pressure: 1,500 PSI
• Temperature range: -40°F to 248°F (-40°C to 120°C)
• Black finish for reduced reflectivity and aesthetic integration

Which hoses and installation steps are recommended?

These barb fittings are designed specifically for rubber fuel lines; they are not intended for braided PTFE or hard plastic tubing unless an appropriate sleeve or adapter is used. For a reliable seal, slide the rubber hose fully onto the barb and secure it with a quality clamp or crimp sleeve as appropriate for the hose style. Regular inspection of clamps and hose seating is recommended after installation and during service intervals.

• Use only with rubber fuel hoses sized for 3/8" barbs
• Seat hose fully on the barb to the hex shoulder
• Secure with worm-drive, Oetiker, or EFI clamps depending on application
• Avoid twisting or sharp bends at the junction to prevent leaks

Who is this for? The EVIL ENERGY 6AN straight push-lock fittings appeal to DIY mechanics, track-day enthusiasts, and anyone plumbing fuel or low-pressure fluid systems where a compact, straight AN-to-barb connection is required. They are suitable for retrofits, repairs, custom fuel-line routing, and fabrication projects that use rubber hoses and require the 6AN thread form factor. If you need a small, economical set of durable aluminum adapters to convert AN-threaded ports to 3/8" rubber hose connections, this four-piece kit delivers a straightforward solution—provided you follow recommended hose and clamp practices for a safe, leak-free installation.